diff --git a/extensions/jackson/deployment/src/main/java/io/quarkus/jackson/deployment/JacksonProcessor.java b/extensions/jackson/deployment/src/main/java/io/quarkus/jackson/deployment/JacksonProcessor.java
index 50568388b0f8f..3908aa8582dfb 100755
--- a/extensions/jackson/deployment/src/main/java/io/quarkus/jackson/deployment/JacksonProcessor.java
+++ b/extensions/jackson/deployment/src/main/java/io/quarkus/jackson/deployment/JacksonProcessor.java
@@ -118,7 +118,7 @@ CapabilityBuildItem register() {
             AnnotationValue usingValue = deserializeInstance.value("using");
             if (usingValue != null) {
                 // the Deserializers are constructed internally by Jackson using a no-args constructor
-                reflectiveClass.produce(new ReflectiveClassBuildItem(false, false, usingValue.asClass().toString()));
+                reflectiveClass.produce(new ReflectiveClassBuildItem(false, false, usingValue.asClass().name().toString()));
             }
         }
 
@@ -129,7 +129,7 @@ CapabilityBuildItem register() {
                 AnnotationValue usingValue = serializeInstance.value("using");
                 if (usingValue != null) {
                     // the Deserializers are constructed internally by Jackson using a no-args constructor
-                    reflectiveClass.produce(new ReflectiveClassBuildItem(false, false, usingValue.asClass().toString()));
+                    reflectiveClass.produce(new ReflectiveClassBuildItem(false, false, usingValue.asClass().name().toString()));
                 }
             }
         }