diff --git a/scan.go b/scan.go
index 736db4d3a..54cd6769d 100644
--- a/scan.go
+++ b/scan.go
@@ -274,12 +274,14 @@ func Scan(rows Rows, db *DB, mode ScanMode) {
 
 			if !update || reflectValue.Len() == 0 {
 				update = false
-				// if the slice cap is externally initialized, the externally initialized slice is directly used here
-				if reflectValue.Cap() == 0 {
-					db.Statement.ReflectValue.Set(reflect.MakeSlice(reflectValue.Type(), 0, 20))
-				} else if !isArrayKind {
-					reflectValue.SetLen(0)
-					db.Statement.ReflectValue.Set(reflectValue)
+				if !isArrayKind {
+					// if the slice cap is externally initialized, the externally initialized slice is directly used here
+					if reflectValue.Cap() == 0 {
+						db.Statement.ReflectValue.Set(reflect.MakeSlice(reflectValue.Type(), 0, 20))
+					} else {
+						reflectValue.SetLen(0)
+						db.Statement.ReflectValue.Set(reflectValue)
+					}
 				}
 			}