diff --git a/Include/AuroraTypedefs.hpp b/Include/AuroraTypedefs.hpp
index e3b0a5ae..78968f8c 100644
--- a/Include/AuroraTypedefs.hpp
+++ b/Include/AuroraTypedefs.hpp
@@ -168,7 +168,7 @@ using AuStreamReadWrittenPair_t = AuPair<AuUInt32, AuUInt32>;
 using AuThreadId_t = AuUInt64;
 static const AuThreadId_t kThreadIdSpecialMask = AuThreadId_t(1) << AuThreadId_t(63);
 
-#if defined(__has_include) && !defined(_AUHAS_GLM)
+#if defined(__has_include) && !defined(_AUHAS_GLM) && defined(_AU_DETECT_GLM)
     #if __has_include(<glm/glm.hpp>)
         #define _AUHAS_GLM
     #endif