diff --git a/gfx/context/glx_ctx.c b/gfx/context/glx_ctx.c
index b91cfb90fb..4540cdc832 100644
--- a/gfx/context/glx_ctx.c
+++ b/gfx/context/glx_ctx.c
@@ -292,6 +292,8 @@ static bool gfx_ctx_set_video_mode(
    g_is_double = val;
    if (g_is_double)
    {
+      if (!g_pglSwapInterval)
+         g_pglSwapInterval = (int (*)(int))glXGetProcAddress((const GLubyte*)"glXSwapInterval");
       if (!g_pglSwapInterval)
          g_pglSwapInterval = (int (*)(int))glXGetProcAddress((const GLubyte*)"glXSwapIntervalMESA");
       if (!g_pglSwapInterval)
diff --git a/gfx/context/sdl_ctx.c b/gfx/context/sdl_ctx.c
index f55906f3b5..c608add95d 100644
--- a/gfx/context/sdl_ctx.c
+++ b/gfx/context/sdl_ctx.c
@@ -64,6 +64,8 @@ static void gfx_ctx_swap_interval(unsigned interval)
       success = CGLSetParameter(CGLGetCurrentContext(), kCGLCPSwapInterval, &val) == 0;
 #else
       static int (*glx_swap_interval)(int) = NULL;
+      if (!glx_swap_interval)
+         GL_SYM_WRAP(glx_swap_interval, "glXSwapInterval");
       if (!glx_swap_interval)
          GL_SYM_WRAP(glx_swap_interval, "glXSwapIntervalMESA");
       if (!glx_swap_interval)