1 files changed, 1 insertions, 1 deletions
diff --git a/parser.c b/parser.c
index 9b16063..dc86734 100644
--- a/parser.c
+++ b/parser.c
@@ -382,7 +382,7 @@ initoperators(void)
 	addoperator(700,  Xfx, L"@>=");
 	addoperator(700,  Xfx, L"is");
 	addoperator(700,  Xfx, L"=:=");
-	addoperator(700,  Xfx, L"=\=");
+	addoperator(700,  Xfx, L"=\\=");
 	addoperator(700,  Xfx, L"<");
 	addoperator(700,  Xfx, L"=<");
 	addoperator(700,  Xfx, L">");