diff --git a/src/player_face.h b/src/player_face.h
--- a/src/player_face.h
+++ b/src/player_face.h
@@ -196,7 +196,7 @@ static inline void RandomPlayerFaceBits(
 	pf = Random(); // random all player face bits
 
 	/* scale ge: 0 == GE_WM, 1 == GE_WF, 2 == GE_BM, 3 == GE_BF (and maybe in future: ...) */
-	ge = (GenderEthnicity)(ge % GE_END);
+	ge = (GenderEthnicity)((uint)ge % GE_END);
 
 	/* set the gender (and ethnicity) for the new player face */
 	if (adv) {