diff --git a/.github/scripts/backwards_compatibility_check.sh b/.github/scripts/backwards_compatibility_check.sh
index b1cf4d13..c1d3aa57 100755
--- a/.github/scripts/backwards_compatibility_check.sh
+++ b/.github/scripts/backwards_compatibility_check.sh
@@ -83,7 +83,7 @@ find_removed_methods() {
     local removed_methods=$(diff <(echo "$LATEST_METHODS") <(echo "$CURRENT_METHODS") | grep '^<')
 
     # ignore synthetic access methods - these are not available to users and will not break backwards compatibility
-    removed_methods=$(echo "$removed_methods" | grep -v "access\$[1-4]00")
+    removed_methods=$(echo "$removed_methods" | grep -v "access\$[0-9]00")
 
     if [[ "$removed_methods" != "" ]]
     then