diff --git a/arkadia/substitute.tf b/arkadia/substitute.tf
index d40f9d2..b718d6c 100644
--- a/arkadia/substitute.tf
+++ b/arkadia/substitute.tf
@@ -512,7 +512,7 @@
     /test echo(9) %;\
   /elseif ({1} =~ "dziesiec" | {1} =~ "dziesieciu") \
     /test echo(10) %;\
-  /elseif ({1} =~ "jedenascie" | {1} =~ "jedynastu") \
+  /elseif ({1} =~ "jedenascie" | {1} =~ "jedenastu") \
     /test echo(11) %;\
   /elseif ({1} =~ "dwanascie" | {1} =~ "dwunastu") \
     /test echo(12) %;\