diff --git a/promql/fuzz.go b/promql/fuzz.go
index 5f08e6a72c..57fd1166ac 100644
--- a/promql/fuzz.go
+++ b/promql/fuzz.go
@@ -61,17 +61,13 @@ const (
 var symbolTable = labels.NewSymbolTable()
 
 func fuzzParseMetricWithContentType(in []byte, contentType string) int {
-	p, warning := textparse.New(in, contentType, false, symbolTable)
+	p, warning := textparse.New(in, contentType, false, false, symbolTable)
 	if warning != nil {
 		// An invalid content type is being passed, which should not happen
 		// in this context.
 		panic(warning)
 	}
 
-	if contentType == "application/openmetrics-text" {
-		p = textparse.NewOpenMetricsParser(in, symbolTable)
-	}
-
 	var err error
 	for {
 		_, err = p.Next()