diff --git a/rpcs3/CMakeLists.txt b/rpcs3/CMakeLists.txt
index a6e9e68556..efa34e9481 100644
--- a/rpcs3/CMakeLists.txt
+++ b/rpcs3/CMakeLists.txt
@@ -107,7 +107,7 @@ if(NOT MSVC)
 
 	add_compile_options(-msse -msse2 -mcx16 -mrtm)
 
-	if(NOT TRAVIS)
+	if(NOT DEFINED ENV{TRAVIS})
 		add_compile_options(-march=native)
 	endif()