diff --git a/act/common/git/git.go b/act/common/git/git.go
index 10506479..3d29b038 100644
--- a/act/common/git/git.go
+++ b/act/common/git/git.go
@@ -209,7 +209,12 @@ func findGitSlug(url string, githubInstance string) (string, string, error) {
 		return "GitHub", fmt.Sprintf("%s/%s", matches[1], matches[2]), nil
 	} else if githubInstance != "github.com" {
 		gheHTTPRegex := regexp.MustCompile(fmt.Sprintf(`^https?://%s/(.+)/(.+?)(?:.git)?$`, githubInstance))
-		gheSSHRegex := regexp.MustCompile(fmt.Sprintf(`%s[:/](.+)/(.+?)(?:.git)?$`, githubInstance))
+		// Examples:
+		// - `code.forgejo.org/forgejo/act`
+		// - `code.forgejo.org:22/forgejo/act`
+		// - `code.forgejo.org:forgejo/act`
+		// - `code.forgejo.org:/forgejo/act`
+		gheSSHRegex := regexp.MustCompile(fmt.Sprintf(`%s(?::\d+/|:|/|:/)([^/].+)/(.+?)(?:.git)?$`, githubInstance))
 		if matches := gheHTTPRegex.FindStringSubmatch(url); matches != nil {
 			return "GitHubEnterprise", fmt.Sprintf("%s/%s", matches[1], matches[2]), nil
 		} else if matches := gheSSHRegex.FindStringSubmatch(url); matches != nil {
diff --git a/act/common/git/git_test.go b/act/common/git/git_test.go
index 78324eb8..5d37c32b 100644
--- a/act/common/git/git_test.go
+++ b/act/common/git/git_test.go
@@ -32,10 +32,19 @@ func TestFindGitSlug(t *testing.T) {
 		{"http://github.com/nektos/act", "GitHub", "nektos/act"},
 		{"git+ssh://git@github.com/owner/repo.git", "GitHub", "owner/repo"},
 		{"http://myotherrepo.com/act.git", "", "http://myotherrepo.com/act.git"},
+		{"ssh://git@example.com/forgejo/act.git", "GitHubEnterprise", "forgejo/act"},
+		{"ssh://git@example.com:2222/forgejo/act.git", "GitHubEnterprise", "forgejo/act"},
+		{"ssh://git@example.com:forgejo/act.git", "GitHubEnterprise", "forgejo/act"},
+		{"ssh://git@example.com:/forgejo/act.git", "GitHubEnterprise", "forgejo/act"},
 	}
 
 	for _, tt := range slugTests {
-		provider, slug, err := findGitSlug(tt.url, "github.com")
+		instance := "example.com"
+		if tt.provider == "GitHub" {
+			instance = "github.com"
+		}
+
+		provider, slug, err := findGitSlug(tt.url, instance)
 
 		assert.NoError(err)
 		assert.Equal(tt.provider, provider)