diff --git a/dockerimg/dockerimg.go b/dockerimg/dockerimg.go
index 12c65f3..ac07fa8 100644
--- a/dockerimg/dockerimg.go
+++ b/dockerimg/dockerimg.go
@@ -561,6 +561,8 @@
 		"-branch-prefix="+config.BranchPrefix,
 		"-link-to-github="+fmt.Sprintf("%t", config.LinkToGitHub),
 	)
+	// Set SSH connection string based on session ID for SSH Theater
+	cmdArgs = append(cmdArgs, "-ssh-connection-string=sketch-"+config.SessionID)
 	if config.Model != "" {
 		cmdArgs = append(cmdArgs, "-model="+config.Model)
 	}