diff --git a/source/gl_dyn_part.c b/source/gl_dyn_part.c
index 3ed1398..8fe4a71 100644
--- a/source/gl_dyn_part.c
+++ b/source/gl_dyn_part.c
@@ -73,7 +73,7 @@ static short r_numparticles, numparticles;
 
 extern qboolean lighthalf;
 
-extern void GDT_Init ();
+extern void GDT_Init (void);
 extern int  part_tex_smoke[8];
 extern int  part_tex_dot;