diff --git a/src/render/opengl/SDL_glfuncs.h b/src/render/opengl/SDL_glfuncs.h
index 03ee6b932..e7362cc37 100644
--- a/src/render/opengl/SDL_glfuncs.h
+++ b/src/render/opengl/SDL_glfuncs.h
@@ -1,6 +1,6 @@
 /* list of OpenGL functions sorted alphabetically
    If you need to use a GL function from the SDL video subsystem,
-   change it's entry from SDL_PROC_UNUSED to SDL_PROC and rebuild.
+   change its entry from SDL_PROC_UNUSED to SDL_PROC and rebuild.
 */
 #define SDL_PROC_UNUSED(ret,func,params)