diff --git a/scope.go b/scope.go
index 9a237998..4fcb84c1 100644
--- a/scope.go
+++ b/scope.go
@@ -448,8 +448,8 @@ func (scope *Scope) callMethod(methodName string, reflectValue reflect.Value) {
 }
 
 var (
-	columnRegexp        = regexp.MustCompile("^[a-zA-Z]+(\\.[a-zA-Z]+)*$") // only match string like `name`, `users.name`
-	isNumberRegexp      = regexp.MustCompile("^\\s*\\d+\\s*$")             // match if string is number
+	columnRegexp        = regexp.MustCompile("^[a-zA-Z\\d]+(\\.[a-zA-Z\\d]+)*$") // only match string like `name`, `users.name`
+	isNumberRegexp      = regexp.MustCompile("^\\s*\\d+\\s*$")                   // match if string is number
 	comparisonRegexp    = regexp.MustCompile("(?i) (=|<>|>|<|LIKE|IS|IN) ")
 	countingQueryRegexp = regexp.MustCompile("(?i)^count(.+)$")
 )