diff --git a/indra/llcommon/llapr.h b/indra/llcommon/llapr.h
index 9eb62195ee..fcff88d5a8 100644
--- a/indra/llcommon/llapr.h
+++ b/indra/llcommon/llapr.h
@@ -196,7 +196,7 @@ private:
 };
 
 // ND: Typedefs for specialized versions. Using std::atomic_(u)int32_t to get the optimzed implementation.
-#ifndef LL_LINUX
+#ifdef LL_WINDOWS
 typedef LLAtomicBase<U32, std::atomic_uint32_t> LLAtomicU32;
 typedef LLAtomicBase<S32, std::atomic_int32_t> LLAtomicS32;
 #else
diff --git a/indra/llcommon/llinstancetracker.h b/indra/llcommon/llinstancetracker.h
index f3a201a238..00c559a166 100644
--- a/indra/llcommon/llinstancetracker.h
+++ b/indra/llcommon/llinstancetracker.h
@@ -120,7 +120,7 @@ protected:
 		void decrementDepth();
 		U32 getDepth();
 	private:
-	#ifndef LL_LINUX
+	#ifdef LL_WINDOWS
 		std::atomic_uint32_t sIterationNestDepth;
 	#else
 		std::atomic_uint sIterationNestDepth;