diff --git a/src/main/java/com/arangodb/springframework/core/convert/resolver/AbstractResolver.java b/src/main/java/com/arangodb/springframework/core/convert/resolver/AbstractResolver.java
index b1348bf90..c8fe1152a 100644
--- a/src/main/java/com/arangodb/springframework/core/convert/resolver/AbstractResolver.java
+++ b/src/main/java/com/arangodb/springframework/core/convert/resolver/AbstractResolver.java
@@ -65,7 +65,7 @@ protected AbstractResolver(final ConversionService conversionService) {
 		this.objenesis = new ObjenesisStd(true);
 	}
 
-	static interface ResolverCallback<A extends Annotation> {
+	public static interface ResolverCallback<A extends Annotation> {
 
 		Object resolve(String id, TypeInformation<?> type, A annotation);