@@ -38,11 +38,11 @@
 	@try {
 		if (condition->waitingTasks == NULL)
 			return true;
 
 		Signal(condition->waitingTasks->task,
-		    1 << condition->waitingTasks->sigBit);
+		    (1ul << condition->waitingTasks->sigBit));
 
 		condition->waitingTasks = condition->waitingTasks->next;
 	} @finally {
 		Permit();
 	}
@@ -58,11 +58,11 @@
 		if (condition->waitingTasks == NULL)
 			return true;
 
 		while (condition->waitingTasks != NULL) {
 			Signal(condition->waitingTasks->task,
-			    1 << condition->waitingTasks->sigBit);
+			    (1ul << condition->waitingTasks->sigBit));
 
 			condition->waitingTasks = condition->waitingTasks->next;
 		}
 	} @finally {
 		Permit();