diff --git a/internal/proxy/search_util.go b/internal/proxy/search_util.go
index f86d76039d..7eedc621da 100644
--- a/internal/proxy/search_util.go
+++ b/internal/proxy/search_util.go
@@ -37,7 +37,7 @@ func parseSearchInfo(searchParamsPair []*commonpb.KeyValuePair, schema *schemapb
 	if err != nil {
 		return nil, 0, fmt.Errorf("%s [%s] is invalid", TopKKey, topKStr)
 	}
-	if err := validateTopKLimit(topK); err != nil {
+	if err := validateLimit(topK); err != nil {
 		return nil, 0, fmt.Errorf("%s [%d] is invalid, %w", TopKKey, topK, err)
 	}
 
@@ -51,7 +51,7 @@ func parseSearchInfo(searchParamsPair []*commonpb.KeyValuePair, schema *schemapb
 			}
 
 			if offset != 0 {
-				if err := validateTopKLimit(offset); err != nil {
+				if err := validateLimit(offset); err != nil {
 					return nil, 0, fmt.Errorf("%s [%d] is invalid, %w", OffsetKey, offset, err)
 				}
 			}
@@ -59,7 +59,7 @@ func parseSearchInfo(searchParamsPair []*commonpb.KeyValuePair, schema *schemapb
 	}
 
 	queryTopK := topK + offset
-	if err := validateTopKLimit(queryTopK); err != nil {
+	if err := validateLimit(queryTopK); err != nil {
 		return nil, 0, fmt.Errorf("%s+%s [%d] is invalid, %w", OffsetKey, TopKKey, queryTopK, err)
 	}
 
diff --git a/internal/proxy/util.go b/internal/proxy/util.go
index c16298c2f4..b282eb4933 100644
--- a/internal/proxy/util.go
+++ b/internal/proxy/util.go
@@ -109,10 +109,10 @@ func validateMaxQueryResultWindow(offset int64, limit int64) error {
 	return nil
 }
 
-func validateTopKLimit(topK int64) error {
+func validateLimit(limit int64) error {
 	topKLimit := Params.QuotaConfig.TopKLimit.GetAsInt64()
-	if topK <= 0 || topK > topKLimit {
-		return fmt.Errorf("top k should be in range [1, %d], but got %d", topKLimit, topK)
+	if limit <= 0 || limit > topKLimit {
+		return fmt.Errorf("it should be in range [1, %d], but got %d", topKLimit, limit)
 	}
 	return nil
 }
diff --git a/internal/proxy/util_test.go b/internal/proxy/util_test.go
index 46b3189351..998538ee6a 100644
--- a/internal/proxy/util_test.go
+++ b/internal/proxy/util_test.go
@@ -2000,10 +2000,10 @@ func Test_NQLimit(t *testing.T) {
 
 func Test_TopKLimit(t *testing.T) {
 	paramtable.Init()
-	assert.Nil(t, validateTopKLimit(16384))
-	assert.Nil(t, validateTopKLimit(1))
-	assert.Error(t, validateTopKLimit(16385))
-	assert.Error(t, validateTopKLimit(0))
+	assert.Nil(t, validateLimit(16384))
+	assert.Nil(t, validateLimit(1))
+	assert.Error(t, validateLimit(16385))
+	assert.Error(t, validateLimit(0))
 }
 
 func Test_MaxQueryResultWindow(t *testing.T) {