diff --git a/Modules/parsermodule.c b/Modules/parsermodule.c
index 77b890a..8e9e258 100644
--- a/Modules/parsermodule.c
+++ b/Modules/parsermodule.c
@@ -1554,7 +1554,7 @@
                    || strcmp(s, ">>=") == 0
                    || strcmp(s, "**=") == 0);
             if (!res)
-                err_string("illegal augmmented assignment operator");
+                err_string("illegal augmented assignment operator");
         }
     }
     else {