diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56c4f4b..be07e6b 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,10 +57,6 @@ IF (MSVC)
   add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
 ENDIF (MSVC)
 
-if(UNIX)
-    set(CMAKE_CXX_FLAGS "-std=c++11")
-endif(UNIX)
-
 include_directories(include src tools/epanet-output/src)
 
 # configure file groups
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 52feb09..4f976bd 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -12,6 +12,10 @@
 #Setup CMake to run tests
 enable_testing()
 
+if(UNIX)
+    set(CMAKE_CXX_FLAGS "-std=c++11")
+endif(UNIX)
+
 #Prep ourselves for compiling boost
 find_package(Boost COMPONENTS unit_test_framework REQUIRED)
 include_directories (${Boost_INCLUDE_DIRS} ../include ../tools/epanet-output/src)