diff --git a/promql/fuzz.go b/promql/fuzz.go
index 3fd50b9496..c07653dfcb 100644
--- a/promql/fuzz.go
+++ b/promql/fuzz.go
@@ -12,7 +12,6 @@
 // limitations under the License.
 
 // Only build when go-fuzz is in use
-//go:build gofuzz
 
 package promql
 
@@ -68,6 +67,13 @@ func fuzzParseMetricWithContentType(in []byte, contentType string) int {
 		panic(warning)
 	}
 
+	switch contentType {
+	case "application/openmetrics-text":
+		p = textparse.NewOpenMetricsParserWithOpts(in, symbolTable, textparse.WithSkipCT(false))
+	default:
+		break
+	}
+
 	var err error
 	for {
 		_, err = p.Next()