diff --git a/src/Platform/AbstractXApplication.h b/src/Platform/AbstractXApplication.h
index 179f0f158..f8d410356 100644
--- a/src/Platform/AbstractXApplication.h
+++ b/src/Platform/AbstractXApplication.h
@@ -289,7 +289,7 @@ class AbstractXApplication::InputEvent {
     protected:
         constexpr InputEvent(Modifiers modifiers): _modifiers(modifiers), _accepted(false) {}
 
-        ~InputEvent() = default;
+        ~InputEvent();
     #endif
 
     private:
@@ -297,6 +297,8 @@ class AbstractXApplication::InputEvent {
         bool _accepted;
 };
 
+AbstractXApplication::InputEvent::~InputEvent() = default;
+
 CORRADE_ENUMSET_OPERATORS(AbstractXApplication::InputEvent::Modifiers)
 
 /**
diff --git a/src/Platform/GlutApplication.h b/src/Platform/GlutApplication.h
index 7a5e0d35e..09850e399 100644
--- a/src/Platform/GlutApplication.h
+++ b/src/Platform/GlutApplication.h
@@ -366,12 +366,14 @@ class GlutApplication::InputEvent {
     protected:
         constexpr InputEvent(): _accepted(false) {}
 
-        ~InputEvent() = default;
+        ~InputEvent();
 
     private:
         bool _accepted;
 };
 
+GlutApplication::InputEvent::~InputEvent() = default;
+
 /**
 @brief Key event
 
diff --git a/src/Platform/GlxContextHandler.h b/src/Platform/GlxContextHandler.h
index 24ac70e7e..f78350800 100644
--- a/src/Platform/GlxContextHandler.h
+++ b/src/Platform/GlxContextHandler.h
@@ -49,7 +49,7 @@ GlxApplication.
 */
 class GlxContextHandler: public AbstractContextHandler<Display*, VisualID, Window> {
     public:
-        explicit GlxContextHandler() = default;
+        explicit GlxContextHandler();
         ~GlxContextHandler();
 
         VisualID getVisualId(Display* nativeDisplay) override;
@@ -68,6 +68,8 @@ class GlxContextHandler: public AbstractContextHandler<Display*, VisualID, Windo
         GLXContext context;
 };
 
+GlxContextHandler::GlxContextHandler() = default;
+
 }}
 
 #endif
diff --git a/src/Platform/Sdl2Application.h b/src/Platform/Sdl2Application.h
index 8b8c03620..82aeb4cf6 100644
--- a/src/Platform/Sdl2Application.h
+++ b/src/Platform/Sdl2Application.h
@@ -349,13 +349,15 @@ class Sdl2Application::InputEvent {
     protected:
         constexpr explicit InputEvent(): _accepted(false) {}
 
-        ~InputEvent() = default;
+        ~InputEvent();
     #endif
 
     private:
         bool _accepted;
 };
 
+Sdl2Application::InputEvent::~InputEvent() = default;
+
 /**
 @brief Key event