diff --git a/internal/datanode/allocator.go b/internal/datanode/allocator.go
index 4db8f53d897cbad48ed2513a10565ca6f87072fb..ebb6a0bc86611674b2cc25c9dcb23d689cce0092 100644
--- a/internal/datanode/allocator.go
+++ b/internal/datanode/allocator.go
@@ -40,7 +40,7 @@ func newAllocator(s types.RootCoord) *allocator {
 	}
 }
 
-// allocID allocat one ID from rootCoord
+// allocID allocate one ID from rootCoord
 func (alloc *allocator) allocID() (UniqueID, error) {
 	ctx := context.TODO()
 	resp, err := alloc.rootCoord.AllocID(ctx, &rootcoordpb.AllocIDRequest{