diff --git a/src/render/opengl/SDL_render_gl.c b/src/render/opengl/SDL_render_gl.c
index 982ede272..4b9655c29 100644
--- a/src/render/opengl/SDL_render_gl.c
+++ b/src/render/opengl/SDL_render_gl.c
@@ -307,7 +307,7 @@ GL_ResetState(SDL_Renderer *renderer)
     GL_CheckError("", renderer);
 }
 
-static void
+static void APIENTRY
 GL_HandleDebugMessage(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const char *message, void *userParam)
 {
     SDL_Renderer *renderer = (SDL_Renderer *) userParam;