diff --git a/utils/utils.go b/utils/utils.go
index 2d87f4c2..e08533cd 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -27,7 +27,7 @@ func sourceDir(file string) string {
 	if filepath.Base(s) != "gorm.io" {
 		s = dir
 	}
-	return s + string(filepath.Separator)
+	return filepath.ToSlash(s) + "/"
 }
 
 // FileWithLineNum return the file name and line number of the current file
diff --git a/utils/utils_windows_test.go b/utils/utils_windows_test.go
index 61d01b00..bc36615e 100644
--- a/utils/utils_windows_test.go
+++ b/utils/utils_windows_test.go
@@ -11,20 +11,20 @@ func TestSourceDir(t *testing.T) {
 		want string
 	}{
 		{
-			file: `C:\Users\name\go\pkg\mod\gorm.io\gorm@v1.2.3\utils\utils.go`,
-			want: `C:\Users\name\go\pkg\mod\gorm.io\`,
+			file: `C:/Users/name/go/pkg/mod/gorm.io/gorm@v1.2.3/utils/utils.go`,
+			want: `C:/Users/name/go/pkg/mod/gorm.io/`,
 		},
 		{
-			file: `C:\go\work\proj\gorm\utils\utils.go`,
-			want: `C:\go\work\proj\gorm\`,
+			file: `C:/go/work/proj/gorm/utils/utils.go`,
+			want: `C:/go/work/proj/gorm/`,
 		},
 		{
-			file: `C:\go\work\proj\gorm_alias\utils\utils.go`,
-			want: `C:\go\work\proj\gorm_alias\`,
+			file: `C:/go/work/proj/gorm_alias/utils/utils.go`,
+			want: `C:/go/work/proj/gorm_alias/`,
 		},
 		{
-			file: `C:\go\work\proj\my.gorm.io\gorm@v1.2.3\utils\utils.go`,
-			want: `C:\go\work\proj\my.gorm.io\gorm@v1.2.3\`,
+			file: `C:/go/work/proj/my.gorm.io/gorm@v1.2.3/utils/utils.go`,
+			want: `C:/go/work/proj/my.gorm.io/gorm@v1.2.3/`,
 		},
 	}
 	for _, c := range cases {