diff --git a/src/backend/utils/adt/jsonpath_scan.l b/src/backend/utils/adt/jsonpath_scan.l
index be0a2cfa2f7..f723462a1f7 100644
--- a/src/backend/utils/adt/jsonpath_scan.l
+++ b/src/backend/utils/adt/jsonpath_scan.l
@@ -43,6 +43,8 @@ fprintf_to_ereport(const char *fmt, const char *msg)
 	ereport(ERROR, (errmsg_internal("%s", msg)));
 }
 
+/* LCOV_EXCL_START */
+
 %}
 
 %option 8bit
@@ -271,6 +273,8 @@ hex_fail	\\x{hex_dig}{0,1}
 
 %%
 
+/* LCOV_EXCL_STOP */
+
 void
 jsonpath_yyerror(JsonPathParseResult **result, const char *message)
 {