diff --git a/model/labels/matcher.go b/model/labels/matcher.go
index 8e220e392..a09c838e3 100644
--- a/model/labels/matcher.go
+++ b/model/labels/matcher.go
@@ -101,7 +101,7 @@ func (m *Matcher) shouldQuoteName() bool {
 		}
 		return true
 	}
-	return false
+	return len(m.Name) == 0
 }
 
 // Matches returns whether the matcher matches the given string value.
diff --git a/promql/parser/printer_test.go b/promql/parser/printer_test.go
index f224d841d..d2e301a88 100644
--- a/promql/parser/printer_test.go
+++ b/promql/parser/printer_test.go
@@ -148,6 +148,13 @@ func TestExprString(t *testing.T) {
 			in:  `{"_0"="1"}`,
 			out: `{_0="1"}`,
 		},
+		{
+			in: `{""="0"}`,
+		},
+		{
+			in:  "{``=\"0\"}",
+			out: `{""="0"}`,
+		},
 	}
 
 	for _, test := range inputs {