diff --git a/flap/src/hopix/hopixLexer.mll b/flap/src/hopix/hopixLexer.mll
index 072c566..67c82d3 100644
--- a/flap/src/hopix/hopixLexer.mll
+++ b/flap/src/hopix/hopixLexer.mll
@@ -112,7 +112,7 @@ rule token = parse
   | '*'                   { STAR      }
   | ','                   { COMMA     }
   | '.'                   { DOT       }
-  | '\\'                  {BACKSLASH  }
+  | '\\'                  { BACKSLASH }
   | ":="                  { ASSIGN    }
   | '!'                   { EXCLA     }