diff --git a/Source/IO/CompletionGroup/CompletionGroup.cpp b/Source/IO/CompletionGroup/CompletionGroup.cpp
index 6509e96e..47aa50d7 100644
--- a/Source/IO/CompletionGroup/CompletionGroup.cpp
+++ b/Source/IO/CompletionGroup/CompletionGroup.cpp
@@ -321,7 +321,7 @@ namespace Aurora::IO::CompletionGroup
             return this->pAnyBarrier;
         }
 
-        if (!this->bNoAny)
+        if (this->bNoAny)
         {
             SysPushErrorGeneric("To prevent double LoopQueue::SourceAdd on the same source, you must not call ::OnSingleCompletion() after ::OnCompletion() in this specific order");
             return {};