diff --git a/src/tsdb/src/tsdbFile.c b/src/tsdb/src/tsdbFile.c
index ff38920c8d..c5c550e72d 100644
--- a/src/tsdb/src/tsdbFile.c
+++ b/src/tsdb/src/tsdbFile.c
@@ -581,5 +581,5 @@ static TSKEY tsdbGetCurrMinKey(int8_t precision, int32_t keep) {
 }
 
 static int tsdbGetCurrMinFid(int8_t precision, int32_t keep, int32_t days) {
-  return TSDB_KEY_FILEID(tsdbGetCurrMinKey(precision, keep), days, precision);
+  return (int32_t)(TSDB_KEY_FILEID(tsdbGetCurrMinKey(precision, keep), days, precision));
 }
\ No newline at end of file