diff --git a/sources/yaml/src/main/java/io/smallrye/config/source/yaml/YamlConfigSource.java b/sources/yaml/src/main/java/io/smallrye/config/source/yaml/YamlConfigSource.java
index 54631a6bf..afab4d0a0 100644
--- a/sources/yaml/src/main/java/io/smallrye/config/source/yaml/YamlConfigSource.java
+++ b/sources/yaml/src/main/java/io/smallrye/config/source/yaml/YamlConfigSource.java
@@ -47,9 +47,14 @@ public YamlConfigSource(String name, String str, int defaultOrdinal) {
     @SuppressWarnings("unchecked")
     private static Map<String, String> streamToMap(InputStream inputStream) throws IOException {
         Assert.checkNotNullParam("inputStream", inputStream);
-        final Map<String, Object> yamlInput;
+        final Map<String, String> yamlInput = new TreeMap<>();
         try {
-            yamlInput = new Yaml().loadAs(inputStream, HashMap.class);
+            final Iterable<Object> objects = new Yaml().loadAll(inputStream);
+            for (Object object : objects) {
+                if (object instanceof Map) {
+                    yamlInput.putAll(yamlInputToMap((Map<String, Object>) object));
+                }
+            }
             inputStream.close();
         } catch (Throwable t) {
             try {
@@ -59,7 +64,7 @@ private static Map<String, String> streamToMap(InputStream inputStream) throws I
             }
             throw t;
         }
-        return yamlInputToMap(yamlInput);
+        return yamlInput;
     }
 
     @SuppressWarnings("unchecked")
diff --git a/sources/yaml/src/test/java/io/smallrye/config/source/yaml/YamlConfigSourceTest.java b/sources/yaml/src/test/java/io/smallrye/config/source/yaml/YamlConfigSourceTest.java
index d08f38362..aef764194 100644
--- a/sources/yaml/src/test/java/io/smallrye/config/source/yaml/YamlConfigSourceTest.java
+++ b/sources/yaml/src/test/java/io/smallrye/config/source/yaml/YamlConfigSourceTest.java
@@ -24,6 +24,16 @@ void flatten() throws Exception {
         assertEquals("joe@gmail.com", yaml.getValue("admin.users.[0].email"));
     }
 
+    @Test
+    void profiles() throws Exception {
+        YamlConfigSource yaml = new YamlConfigSource("yaml",
+                YamlConfigSourceTest.class.getResourceAsStream("/example-profiles.yml"));
+
+        assertEquals("default", yaml.getValue("foo.bar"));
+        assertEquals("dev", yaml.getValue("%dev.foo.bar"));
+        assertEquals("prod", yaml.getValue("%prod.foo.bar"));
+    }
+
     public static class Users {
         List<User> users;
 
diff --git a/sources/yaml/src/test/resources/example-profiles.yml b/sources/yaml/src/test/resources/example-profiles.yml
new file mode 100644
index 000000000..b4226a8c8
--- /dev/null
+++ b/sources/yaml/src/test/resources/example-profiles.yml
@@ -0,0 +1,14 @@
+---
+foo:
+  bar:
+    default
+---
+"%dev":
+  foo:
+    bar:
+      dev
+---
+"%prod":
+  foo:
+    bar:
+      prod