diff --git a/src/Magnum/Platform/Implementation/EglContextHandler.h b/src/Magnum/Platform/Implementation/EglContextHandler.h
index 3f1dc51d3..91751b637 100644
--- a/src/Magnum/Platform/Implementation/EglContextHandler.h
+++ b/src/Magnum/Platform/Implementation/EglContextHandler.h
@@ -57,7 +57,7 @@ Used in XEglApplication.
 */
 class EglContextHandler: public AbstractContextHandler<AbstractXApplication::Configuration, EGLNativeDisplayType, VisualId, EGLNativeWindowType> {
     public:
-        explicit EglContextHandler() = default;
+        explicit EglContextHandler();
         ~EglContextHandler();
 
         VisualId getVisualId(EGLNativeDisplayType nativeDisplay) override;
@@ -78,6 +78,9 @@ class EglContextHandler: public AbstractContextHandler<AbstractXApplication::Con
         EGLContext context;
 };
 
+/* GCC 4.5 can't have this defaulted in class body */
+EglContextHandler::EglContextHandler() = default;
+
 }}}
 
 #endif
diff --git a/src/Magnum/Platform/Implementation/GlxContextHandler.h b/src/Magnum/Platform/Implementation/GlxContextHandler.h
index 3da2547e1..88606f3a8 100644
--- a/src/Magnum/Platform/Implementation/GlxContextHandler.h
+++ b/src/Magnum/Platform/Implementation/GlxContextHandler.h
@@ -69,6 +69,7 @@ class GlxContextHandler: public AbstractContextHandler<AbstractXApplication::Con
         GLXContext context;
 };
 
+/* GCC 4.5 can't have this defaulted in class body */
 GlxContextHandler::GlxContextHandler() = default;
 
 }}}