diff --git a/src/eglapp.cpp b/src/eglapp.cpp
index fb5d6640..a118cac4 100644
--- a/src/eglapp.cpp
+++ b/src/eglapp.cpp
@@ -187,7 +187,7 @@ EglApp::~EglApp()
     XCloseDisplay(data->dpy);
 #endif
 
-    free(data);
+    delete data;
 }
 
 } /* namespace lol */
diff --git a/src/sdlapp.cpp b/src/sdlapp.cpp
index 4e8d8743..10ff6b06 100644
--- a/src/sdlapp.cpp
+++ b/src/sdlapp.cpp
@@ -90,7 +90,7 @@ SdlApp::~SdlApp()
 #if defined USE_SDL
     SDL_Quit();
 #endif
-    free(data);
+    delete data;
 }
 
 } /* namespace lol */