diff --git a/libgst/sysdep/win32/timer.c b/libgst/sysdep/win32/timer.c
index 7b5bd75..368eb61 100644
--- a/libgst/sysdep/win32/timer.c
+++ b/libgst/sysdep/win32/timer.c
@@ -64,7 +64,7 @@
 #endif
 
 void
-_gst_sigvtalrm_every (int deltaMilli)
+_gst_sigvtalrm_every (int deltaMilli, SigHandler func)
 {
 }