diff --git a/src/coreclr/vm/ceemain.cpp b/src/coreclr/vm/ceemain.cpp
index 9f9ffc56530b0f..935506c5412600 100644
--- a/src/coreclr/vm/ceemain.cpp
+++ b/src/coreclr/vm/ceemain.cpp
@@ -1766,7 +1766,6 @@ void InitFlsSlot()
     g_flsIndex = FlsAlloc(FiberDetachCallback);
     if (g_flsIndex == FLS_OUT_OF_INDEXES)
     {
-        _ASSERTE(!"Initialization of an FLS slot failed.");
         COMPlusThrowWin32();
     }
 }