diff --git a/common/herrors/error_locator.go b/common/herrors/error_locator.go
index 3a72f479083..15de6d318f1 100644
--- a/common/herrors/error_locator.go
+++ b/common/herrors/error_locator.go
@@ -173,7 +173,7 @@ func chromaLexerFromType(fileType string) string {
 }
 
 func extNoDelimiter(filename string) string {
-	return strings.TrimPrefix(".", filepath.Ext(filename))
+	return strings.TrimPrefix(filepath.Ext(filename), ".")
 }
 
 func chromaLexerFromFilename(filename string) string {