diff --git a/publisher/pkg/impl/funcs_tiup.go b/publisher/pkg/impl/funcs_tiup.go
index b8ba897..d42ca13 100644
--- a/publisher/pkg/impl/funcs_tiup.go
+++ b/publisher/pkg/impl/funcs_tiup.go
@@ -15,7 +15,7 @@ const nightlyVerSuffix = "-nightly"
 var (
 	pkgNameRegex           = regexp.MustCompile(`^(.+)-v\d+\.\d+\.\d+`)
 	pkgVersionNightlyRegex = regexp.MustCompile(`(-\d+-g[0-9a-f]{7,})$`)
-	ociGATagRegex          = regexp.MustCompile(`^(v\d+\.\d+\.\d+)(-\w+-)?_(linux|darwin)_(amd64|arm64)$`)
+	ociGATagRegex          = regexp.MustCompile(`^(v\d+\.\d+\.\d+)(-\w+)?_(linux|darwin)_(amd64|arm64)$`)
 	ociNightlyTagRegex     = regexp.MustCompile(`^(master|main)_(linux|darwin)_(amd64|arm64)$`)
 	tiupVersionRegex       = regexp.MustCompile(`^v\d+\.\d+\.\d+.*(-nightly)$`)
 )
@@ -162,7 +162,7 @@ func transformTiupVer(version, tag string) string {
 	case ociGATagRegex.MatchString(tag): // GA case
 		// ociGATagRegex          = regexp.MustCompile(`^(v\d+\.\d+\.\d+)(-\w+)?_(linux|darwin)_(amd64|arm64)$`)
 		matches := ociGATagRegex.FindStringSubmatch(tag)
-		return strings.Join(matches[1:2], "")
+		return strings.Join(matches[1:3], "")
 	case ociNightlyTagRegex.MatchString(tag): // Nightly case
 		// we replace the suffix part of version: '-[0-9]+-g[0-9a-f]+$' to "-nightly"
 		return pkgVersionNightlyRegex.ReplaceAllString(version, "") + nightlyVerSuffix
diff --git a/publisher/pkg/impl/funcs_tiup_test.go b/publisher/pkg/impl/funcs_tiup_test.go
new file mode 100644
index 0000000..4297239
--- /dev/null
+++ b/publisher/pkg/impl/funcs_tiup_test.go
@@ -0,0 +1,31 @@
+package impl
+
+import "testing"
+
+func Test_transformTiupVer(t *testing.T) {
+	type args struct {
+		version string
+		tag     string
+	}
+	tests := []struct {
+		name string
+		args args
+		want string
+	}{
+		{
+			name: "test1",
+			args: args{
+				version: "v8.5.0-pre",
+				tag:     "v8.5.0-centos7_linux_amd64",
+			},
+			want: "v8.5.0-centos7",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := transformTiupVer(tt.args.version, tt.args.tag); got != tt.want {
+				t.Errorf("transformTiupVer() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}