diff --git a/helper/schema/field_reader_diff.go b/helper/schema/field_reader_diff.go
index 378909fd3f..ec875421bb 100644
--- a/helper/schema/field_reader_diff.go
+++ b/helper/schema/field_reader_diff.go
@@ -153,8 +153,8 @@ func (r *DiffFieldReader) readSet(
 		if !strings.HasPrefix(k, prefix) {
 			continue
 		}
-		if strings.HasPrefix(k, prefix+"#") {
-			// Ignore the count field
+		if strings.HasSuffix(k, "#") {
+			// Ignore any count field
 			continue
 		}