diff --git a/src/Contexts/AbstractXContext.h b/src/Contexts/AbstractXContext.h
index 3f30bee54..4bfd3eee6 100644
--- a/src/Contexts/AbstractXContext.h
+++ b/src/Contexts/AbstractXContext.h
@@ -257,6 +257,9 @@ class AbstractXContext: public AbstractContext {
         bool _redraw;
 };
 
+CORRADE_ENUMSET_OPERATORS(AbstractXContext::Modifiers)
+
+/* Implementations for inline functions with unused parameters */
 inline void AbstractXContext::keyPressEvent(Key, Modifiers, const Math::Vector2<int>&) {}
 inline void AbstractXContext::keyReleaseEvent(Key, Modifiers, const Math::Vector2<int>&) {}
 inline void AbstractXContext::mousePressEvent(MouseButton, Modifiers, const Math::Vector2<int>&) {}
diff --git a/src/Framebuffer.h b/src/Framebuffer.h
index 4df94c9bf..427dcca32 100644
--- a/src/Framebuffer.h
+++ b/src/Framebuffer.h
@@ -1111,6 +1111,9 @@ class MAGNUM_EXPORT Framebuffer {
         GLuint framebuffer;
 };
 
+CORRADE_ENUMSET_OPERATORS(Framebuffer::ClearMask)
+CORRADE_ENUMSET_OPERATORS(Framebuffer::BlitMask)
+
 }
 
 #endif
diff --git a/src/Trade/AbstractImporter.h b/src/Trade/AbstractImporter.h
index 0258b2b32..2b7ed2528 100644
--- a/src/Trade/AbstractImporter.h
+++ b/src/Trade/AbstractImporter.h
@@ -310,7 +310,7 @@ class MAGNUM_EXPORT AbstractImporter: public Corrade::PluginManager::Plugin {
         /*@}*/
 };
 
-SET_OPERATORS(AbstractImporter::Features)
+CORRADE_ENUMSET_OPERATORS(AbstractImporter::Features)
 
 /* Implementations for inline functions with unused parameters */
 inline int AbstractImporter::sceneForName(const std::string&) { return -1; }