diff --git a/pkg/model/github_context.go b/pkg/model/github_context.go
index 5ed3d962ffa..8c488d40030 100644
--- a/pkg/model/github_context.go
+++ b/pkg/model/github_context.go
@@ -4,11 +4,17 @@ import (
 	"context"
 	"fmt"
 	"strings"
+	"sync"
 
 	"github.com/nektos/act/pkg/common"
 	"github.com/nektos/act/pkg/common/git"
 )
 
+var (
+	loggedWarnings = make(map[string]bool)
+	mu             sync.Mutex
+)
+
 type GithubContext struct {
 	Event            map[string]interface{} `json:"event"`
 	EventPath        string                 `json:"event_path"`
@@ -168,7 +174,11 @@ func (ghc *GithubContext) SetRepositoryAndOwner(ctx context.Context, githubInsta
 	if ghc.Repository == "" {
 		repo, err := git.FindGithubRepo(ctx, repoPath, githubInstance, remoteName)
 		if err != nil {
-			common.Logger(ctx).Warningf("unable to get git repo: %v", err)
+			warningMsg := fmt.Sprintf("unable to get git repo: %v", err)
+			if !hasLoggedWarning(warningMsg) {
+				common.Logger(ctx).Warningf(warningMsg)
+				markWarningAsLogged(warningMsg)
+			}
 			return
 		}
 		ghc.Repository = repo
@@ -211,3 +221,16 @@ func (ghc *GithubContext) SetBaseAndHeadRef() {
 		}
 	}
 }
+
+func hasLoggedWarning(msg string) bool {
+	mu.Lock()
+	defer mu.Unlock()
+	_, exists := loggedWarnings[msg]
+	return exists
+}
+
+func markWarningAsLogged(msg string) {
+	mu.Lock()
+	defer mu.Unlock()
+	loggedWarnings[msg] = true
+}