diff --git a/qrenderdoc/Code/pyrenderdoc/CMakeLists.txt b/qrenderdoc/Code/pyrenderdoc/CMakeLists.txt
index 5e1c44135..a5dc39c2a 100644
--- a/qrenderdoc/Code/pyrenderdoc/CMakeLists.txt
+++ b/qrenderdoc/Code/pyrenderdoc/CMakeLists.txt
@@ -1,8 +1,9 @@
 # Build as C++14 for the python bindings template-fu
 if (CMAKE_VERSION VERSION_LESS "3.1")
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --std=c++14")
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
 else ()
     set (CMAKE_CXX_STANDARD 14)
+    set (CMAKE_CXX_STANDARD_REQUIRED ON)
 endif ()
 
 # include paths for qrenderdoc, the internal renderdoc API, and Python