diff --git a/dictsource/ru_rules b/dictsource/ru_rules
index bc469741..db8fde91 100644
--- a/dictsource/ru_rules
+++ b/dictsource/ru_rules
@@ -424,7 +424,7 @@
         ш (з    Z
 
 .group щ
-        щ       StS;
+        щ       S;
      _) щ (_    S;ja
         щ (бY   Z;
         щ (б    Z;