diff --git a/core/testsuite/src/test/hibernate/com/blazebit/persistence/testsuite/Issue545Test.java b/core/testsuite/src/test/hibernate/com/blazebit/persistence/testsuite/Issue545Test.java
new file mode 100644
index 0000000000..725c63c124
--- /dev/null
+++ b/core/testsuite/src/test/hibernate/com/blazebit/persistence/testsuite/Issue545Test.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2014 - 2018 Blazebit.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.blazebit.persistence.testsuite;
+
+import com.blazebit.persistence.testsuite.tx.TxVoidWork;
+import org.hibernate.HibernateException;
+import org.hibernate.annotations.Formula;
+import org.hibernate.annotations.Type;
+import org.hibernate.annotations.TypeDef;
+import org.hibernate.engine.spi.SharedSessionContractImplementor;
+import org.hibernate.usertype.UserType;
+import org.junit.Before;
+import org.junit.Test;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EntityManager;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import java.io.Serializable;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Types;
+
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * @author Jan-Willem Gmelig Meyling
+ * @since 1.3.0
+ */
+public class Issue545Test extends AbstractCoreTest {
+
+    @Override
+    protected Class<?>[] getEntityClasses() {
+        return new Class<?>[] { EntityWithCustomType.class };
+    }
+
+    @Before
+    public void setUp() throws Exception {
+        transactional(new TxVoidWork() {
+            @Override
+            public void work(EntityManager em) {
+                EntityWithCustomType entityWithCustomType = new EntityWithCustomType();
+                entityWithCustomType.customValue = "custom";
+                em.persist(entityWithCustomType);
+                em.flush();
+                em.clear();
+            }
+        });
+    }
+
+    @Test
+    public void queryEntityWithCustomTypeTest() {
+        transactional(new TxVoidWork() {
+            @Override
+            public void work(EntityManager em) {
+                EntityWithCustomType singleResult = cbf.create(em, EntityWithCustomType.class)
+                        .where("transformedCustomValue").eq("CUSTOM")
+                        .getSingleResult();
+
+                assertNotNull(singleResult);
+            }
+        });
+    }
+
+    @Entity
+    @TypeDef(name = "CustomType", typeClass = CustomType.class)
+    public static class EntityWithCustomType {
+
+        @Id
+        @GeneratedValue(strategy = GenerationType.AUTO)
+        private Long id;
+
+        @Column(name = "custom_value")
+        private String customValue;
+
+        @Formula("UPPER(custom_value)")
+        @Type(type = "CustomType")
+        private String transformedCustomValue;
+
+    }
+
+    public static class CustomType implements UserType {
+
+        @Override
+        public int[] sqlTypes() {
+            return new int[] { Types.VARCHAR };
+        }
+
+        @Override
+        public Class returnedClass() {
+            return String.class;
+        }
+
+        @Override
+        public boolean equals(Object x, Object y) throws HibernateException {
+            return x.equals(y);
+        }
+
+        @Override
+        public int hashCode(Object x) throws HibernateException {
+            return x.hashCode();
+        }
+
+        @Override
+        public Object nullSafeGet(ResultSet rs, String[] names, SharedSessionContractImplementor session, Object owner) throws HibernateException, SQLException {
+            return rs.getString(names[0]);
+        }
+
+        @Override
+        public void nullSafeSet(PreparedStatement st, Object value, int index, SharedSessionContractImplementor session) throws HibernateException, SQLException {
+            st.setString(index, value.toString());
+
+        }
+
+        @Override
+        public Object deepCopy(Object value) throws HibernateException {
+            return value;
+        }
+
+        @Override
+        public boolean isMutable() {
+            return false;
+        }
+
+        @Override
+        public Serializable disassemble(Object value) throws HibernateException {
+            return (Serializable) value;
+        }
+
+        @Override
+        public Object assemble(Serializable cached, Object owner) throws HibernateException {
+            return cached;
+        }
+
+        @Override
+        public Object replace(Object original, Object target, Object owner) throws HibernateException {
+            return original;
+        }
+    }
+
+}
diff --git a/integration/hibernate-base/src/main/java/com/blazebit/persistence/integration/hibernate/base/HibernateJpaProvider.java b/integration/hibernate-base/src/main/java/com/blazebit/persistence/integration/hibernate/base/HibernateJpaProvider.java
index f34413df40..33e38efc78 100644
--- a/integration/hibernate-base/src/main/java/com/blazebit/persistence/integration/hibernate/base/HibernateJpaProvider.java
+++ b/integration/hibernate-base/src/main/java/com/blazebit/persistence/integration/hibernate/base/HibernateJpaProvider.java
@@ -59,6 +59,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.logging.Logger;
 
 /**
  *
@@ -68,6 +69,8 @@
 public class HibernateJpaProvider implements JpaProvider {
 
     private static final Method GET_TYPE_NAME;
+    private static final Logger LOG = Logger.getLogger(HibernateJpaProvider.class.getName());
+
     protected final DB db;
     protected final Map<String, EntityPersister> entityPersisters;
     protected final Map<String, CollectionPersister> collectionPersisters;
@@ -568,21 +571,23 @@ public String[] getColumnTypes(EntityType<?> entityType, String attributeName) {
 
         if (isFormula || isSubselect) {
             Type propertyType = entityPersister.getPropertyType(attributeName);
-            long length;
-            int precision;
-            int scale;
-            try {
-                if (propertyType instanceof org.hibernate.type.EntityType) {
-                    propertyType = ((org.hibernate.type.EntityType) propertyType).getIdentifierOrUniqueKeyType(sfi);
-                }
 
+            if (propertyType instanceof org.hibernate.type.EntityType) {
+                propertyType = ((org.hibernate.type.EntityType) propertyType).getIdentifierOrUniqueKeyType(sfi);
+            }
+
+            long length =   Column.DEFAULT_LENGTH;
+            int precision = Column.DEFAULT_PRECISION;
+            int scale =     Column.DEFAULT_SCALE;
+
+            try {
                 Method m = Type.class.getMethod("dictatedSizes", Mapping.class);
                 Object size = ((Object[]) m.invoke(propertyType, sfi))[0];
                 length =    (long) size.getClass().getMethod("getLength").invoke(size);
                 precision = (int)  size.getClass().getMethod("getPrecision").invoke(size);
                 scale =     (int)  size.getClass().getMethod("getScale").invoke(size);
             } catch (Exception ex) {
-                throw new RuntimeException("Could not determine the column type of the attribute: " + attributeName + " of the entity: " + entityType.getName());
+                LOG.fine("Could not determine the column type of the attribute: " + attributeName + " of the entity: " + entityType.getName());
             }
 
             return new String[] {