diff --git a/src/video/qnx/gl.c b/src/video/qnx/gl.c
index 29393fbaa6..a9338ba38a 100644
--- a/src/video/qnx/gl.c
+++ b/src/video/qnx/gl.c
@@ -154,7 +154,7 @@ glLoadLibrary(_THIS, const char *name)
  * @param   proc    Function name
  * @return  Function address
  */
-void *
+SDL_FunctionPointer
 glGetProcAddress(_THIS, const char *proc)
 {
     return eglGetProcAddress(proc);
diff --git a/src/video/qnx/sdl_qnx.h b/src/video/qnx/sdl_qnx.h
index 65e07988e9..3a3fddb75e 100644
--- a/src/video/qnx/sdl_qnx.h
+++ b/src/video/qnx/sdl_qnx.h
@@ -37,7 +37,7 @@ extern void handleKeyboardEvent(screen_event_t event);
 
 extern int glGetConfig(EGLConfig *pconf, int *pformat);
 extern int glLoadLibrary(_THIS, const char *name);
-void *glGetProcAddress(_THIS, const char *proc);
+extern SDL_FunctionPointer glGetProcAddress(_THIS, const char *proc);
 extern SDL_GLContext glCreateContext(_THIS, SDL_Window *window);
 extern int glSetSwapInterval(_THIS, int interval);
 extern int glSwapWindow(_THIS, SDL_Window *window);