diff --git a/statement.go b/statement.go
index 781f14e6..c7b0b593 100644
--- a/statement.go
+++ b/statement.go
@@ -287,7 +287,12 @@ func (stmt *Statement) BuildCondition(query interface{}, args ...interface{}) []
 				return nil
 			}
 
-			// The primary key type is not int, but string or uuid (#5984)
+			//The primary key type is not int, but string or uuid (#5984)
+			if len(args) == 0 && (!strings.Contains(s, "?") && !strings.Contains(s, "@")) {
+				// if it is a string, then treats it as primary key
+				return []clause.Expression{clause.IN{Column: clause.PrimaryColumn, Values: []interface{}{s}}}
+			}
+
 			if len(args) == 0 || (len(args) > 0 && strings.Contains(s, "?")) {
 				// looks like a where condition
 				return []clause.Expression{clause.Expr{SQL: s, Vars: args}}