diff --git a/testutil/accumulator.go b/testutil/accumulator.go
index 65c8883e0..3fe291699 100644
--- a/testutil/accumulator.go
+++ b/testutil/accumulator.go
@@ -340,9 +340,10 @@ func (a *Accumulator) AssertDoesNotContainsTaggedFields(
 			continue
 		}
 
-		if p.Measurement == measurement {
-			assert.Equal(t, fields, p.Fields)
-			msg := fmt.Sprintf("found measurement %s with tags %v which should not be there", measurement, tags)
+		if p.Measurement == measurement && reflect.DeepEqual(fields, p.Fields) {
+			msg := fmt.Sprintf(
+				"found measurement %s with tagged fields (tags %v) which should not be there",
+				measurement, tags)
 			assert.Fail(t, msg)
 		}
 	}