diff --git a/src/video/x11/SDL_x11gl.c b/src/video/x11/SDL_x11gl.c
index c738df337..26d330ad9 100644
--- a/src/video/x11/SDL_x11gl.c
+++ b/src/video/x11/SDL_x11gl.c
@@ -441,7 +441,7 @@ int X11_GL_LoadLibrary(_THIS, const char* path)
 	this->gl_data->glXGetConfig =
 		(int (*)(Display *, XVisualInfo *, int, int *)) dlsym(handle, "glXGetConfig");
 	this->gl_data->glXQueryExtensionsString =
-		(const char (*)(Display *, int)) dlsym(handle, "glXQueryExtensionsString");
+		(const char *(*)(Display *, int)) dlsym(handle, "glXQueryExtensionsString");
 	
 	/* We don't compare below for this in case we're not using Mesa. */
 	this->gl_data->glXReleaseBuffersMESA =
diff --git a/src/video/x11/SDL_x11gl_c.h b/src/video/x11/SDL_x11gl_c.h
index d2dadbec0..fb5ca195a 100644
--- a/src/video/x11/SDL_x11gl_c.h
+++ b/src/video/x11/SDL_x11gl_c.h
@@ -77,7 +77,7 @@ struct SDL_PrivateGLData {
 	 ( Display* dpy,
 	   GLXDrawable drawable );
 
-    const char (*glXQueryExtensionsString)
+    const char *(*glXQueryExtensionsString)
 	    ( Display* dpy,
 	      int screen);