Index: src/server/npcmanager.cpp
===================================================================
--- src/server/npcmanager.cpp   (revision 904)
+++ src/server/npcmanager.cpp   (working copy)
@@ -1340,7 +1340,7 @@
         return true;
     }

-    psserver->SendSystemInfo(clientnum, "Your %s do not react to your command", type);
+    psserver->SendSystemInfo(clientnum, "Your %s does not react to your command", type);
     return false;
 }