diff --git a/src/video/x11/SDL_x11sym.h b/src/video/x11/SDL_x11sym.h
index fef7589..42edab0 100644
--- a/src/video/x11/SDL_x11sym.h
+++ b/src/video/x11/SDL_x11sym.h
@@ -60,6 +60,7 @@
 SDL_X11_SYM(Status,XGetWindowAttributes,(Display* a,Window b,XWindowAttributes* c),(a,b,c),return)
 SDL_X11_SYM(int,XGetWindowProperty,(Display* a,Window b,Atom c,long d,long e,Bool f,Atom g,Atom* h,int* i,unsigned long* j,unsigned long *k,unsigned char **l),(a,b,c,d,e,f,g,h,i,j,k,l),return)
 SDL_X11_SYM(XWMHints*,XGetWMHints,(Display* a,Window b),(a,b),return)
+SDL_X11_SYM(Status,XGetWMNormalHints,(Display *a,Window b, XSizeHints *c, long *d),(a,b,c,d),return)
 SDL_X11_SYM(int,XGrabKeyboard,(Display* a,Window b,Bool c,int d,int e,Time f),(a,b,c,d,e,f),return)
 SDL_X11_SYM(int,XGrabPointer,(Display* a,Window b,Bool c,unsigned int d,int e,int f,Window g,Cursor h,Time i),(a,b,c,d,e,f,g,h,i),return)
 SDL_X11_SYM(int,XGrabServer,(Display* a),(a),return)