diff --git a/es-core/src/components/OptionListComponent.h b/es-core/src/components/OptionListComponent.h
index 1ca2eec94..0d2097ab1 100644
--- a/es-core/src/components/OptionListComponent.h
+++ b/es-core/src/components/OptionListComponent.h
@@ -156,7 +156,7 @@ public:
         return GuiComponent::input(config, input);
     }
 
-    const int getNumEntries() { return mEntries.size(); }
+    const int getNumEntries() { return static_cast<int>(mEntries.size()); }
 
     std::vector<T> getSelectedObjects()
     {