diff --git a/src/shknam.c b/src/shknam.c
index 5f1f156b1..6c06dfb83 100644
--- a/src/shknam.c
+++ b/src/shknam.c
@@ -1316,7 +1316,7 @@ struct monst *shk;
             maybe_add_svc(shk, SHK_ARM_ENC);
         if (!rn2(5) && P_MAX_SKILL(P_FIREARM) > 0)
             maybe_add_svc(shk, SHK_FIREARMS);
-        if (!rn2(7))
+        if (!rn2(5))
             maybe_add_svc(shk, SHK_PROP);
     }