diff --git a/services.go b/services.go
index 1286b98..218a0b3 100644
--- a/services.go
+++ b/services.go
@@ -69,7 +69,13 @@ func (s *Services) PushRepository() error {
 
 	sourceBranch := s.cfg.LocalBranch
 	if sourceBranch == "" {
-		sourceBranch = "main"
+		// Get the current ref
+		ref, err := runCmdExpectingOutput("git", "rev-parse", "--abbrev-ref", "HEAD")
+		if err != nil {
+			return err
+		}
+
+		sourceBranch = strings.TrimSpace(ref)
 	}
 	remoteBranch := s.cfg.RemoteBranch
 	if remoteBranch == "" {
@@ -96,6 +102,17 @@ func runCmd(cmd ...string) error {
 	return e.Run()
 }
 
+func runCmdExpectingOutput(cmd ...string) (string, error) {
+	log.Printf(" .. [exec] %v", strings.Join(cmd, " "))
+	e := exec.Command(cmd[0], cmd[1:]...)
+	e.Stderr = os.Stderr
+	res, err := e.Output()
+	if err != nil {
+		return "", err
+	}
+	return string(res), nil
+}
+
 func writeFile(path string, content string, mode os.FileMode) error {
 	fullPath := os.ExpandEnv(path)
 	log.Printf(" .. [file] %v (%v bytes)", fullPath, len(content))