1 files changed, 4 insertions, 4 deletions
diff --git a/sources/shiboken2/ApiExtractor/apiextractor.h b/sources/shiboken2/ApiExtractor/apiextractor.h
index f6dd2ba8e..b0c2c696f 100644
--- a/sources/shiboken2/ApiExtractor/apiextractor.h
+++ b/sources/shiboken2/ApiExtractor/apiextractor.h
@@ -81,10 +81,10 @@ public:
     LanguageLevel languageLevel() const;
     void setLanguageLevel(LanguageLevel languageLevel);
 
-    AbstractMetaEnumList globalEnums() const;
-    AbstractMetaFunctionList globalFunctions() const;
-    AbstractMetaClassList classes() const;
-    AbstractMetaClassList smartPointers() const;
+    const AbstractMetaEnumList &globalEnums() const;
+    const AbstractMetaFunctionList &globalFunctions() const;
+    const AbstractMetaClassList &classes() const;
+    const AbstractMetaClassList &smartPointers() const;
     AbstractMetaClassList classesTopologicalSorted(const Dependencies &additionalDependencies = Dependencies()) const;
     PrimitiveTypeEntryList primitiveTypes() const;
     ContainerTypeEntryList containerTypes() const;