diff --git a/engine/client/r_d3.c b/engine/client/r_d3.c
index 1d858c33a..9664b1687 100644
--- a/engine/client/r_d3.c
+++ b/engine/client/r_d3.c
@@ -4,6 +4,7 @@
 #endif
 
 void RMod_SetParent (mnode_t *node, mnode_t *parent);
+int	D3_LeafnumForPoint (struct model_s *model, vec3_t point);
 
 #ifndef SERVERONLY
 qboolean Mod_LoadMap_Proc(model_t *model, char *data)