diff --git a/bazaar/Uniq/Posix.cpp b/bazaar/Uniq/Posix.cpp
index 95d1e17af..1cc588c55 100644
--- a/bazaar/Uniq/Posix.cpp
+++ b/bazaar/Uniq/Posix.cpp
@@ -40,7 +40,7 @@ bool Uniq::SendCmdLine(int pipe)
 	}
 	fclose(f);
 	// posts the callback to handle new instance's command line
-	PostCallback(callback1(WhenInstance, v));
+	PostCallback([=, &v]() { WhenInstance(v); } );
 	return true;
 
 }
diff --git a/bazaar/Uniq/Uniq.h b/bazaar/Uniq/Uniq.h
index 112d97d23..9770e2259 100644
--- a/bazaar/Uniq/Uniq.h
+++ b/bazaar/Uniq/Uniq.h
@@ -54,7 +54,7 @@ class Uniq
 	typedef Uniq CLASSNAME;
 	
 	// callback called when another app instance is run
-	Callback1<Vector<String> const &> WhenInstance;
+	Event<const Vector<String>&> WhenInstance;
 	
 	Uniq();
 	
diff --git a/bazaar/Uniq/Windows.cpp b/bazaar/Uniq/Windows.cpp
index 8c6cc4298..20fbb8e89 100644
--- a/bazaar/Uniq/Windows.cpp
+++ b/bazaar/Uniq/Windows.cpp
@@ -106,7 +106,7 @@ bool Uniq::SendCmdLine(void)
 	// disconnects from client
 	DisconnectNamedPipe(pipe);
 	
-	PostCallback(callback1(WhenInstance, v));
+	PostCallback([=, &v]() { WhenInstance(v); } );
 	return true;
 }