diff --git a/src/posix/sdl/sdlglvideo.cpp b/src/posix/sdl/sdlglvideo.cpp
index 0635002e1..0cd6b223b 100644
--- a/src/posix/sdl/sdlglvideo.cpp
+++ b/src/posix/sdl/sdlglvideo.cpp
@@ -49,7 +49,8 @@ EXTERN_CVAR (Float, Gamma)
 EXTERN_CVAR (Int, vid_adapter)
 EXTERN_CVAR (Int, vid_displaybits)
 EXTERN_CVAR (Int, vid_renderer)
-
+EXTERN_CVAR (Int, vid_maxfps)
+EXTERN_CVAR (Bool, cl_capfps)
 
 // PUBLIC DATA DEFINITIONS -------------------------------------------------