diff --git a/xdsl/transforms/individual_rewrite.py b/xdsl/transforms/individual_rewrite.py
index 67414488e9..5b461c379b 100644
--- a/xdsl/transforms/individual_rewrite.py
+++ b/xdsl/transforms/individual_rewrite.py
@@ -125,5 +125,5 @@ def apply(self, ctx: MLContext, op: ModuleOp) -> None:
         pattern.match_and_rewrite(matched_operation, rewriter)
         if not rewriter.has_done_action:
             raise ValueError(
-                f"Invalid rewrite ({pattern}) for operation ({matched_operation}) at location {self.matched_operation_index}."
+                f"Invalid rewrite ({self.pattern_name}) for operation ({matched_operation}) at location {self.matched_operation_index}."
             )