diff --git a/fmt/CMakeLists.txt b/fmt/CMakeLists.txt
index c0ef02e..1634924 100644
--- a/fmt/CMakeLists.txt
+++ b/fmt/CMakeLists.txt
@@ -14,8 +14,6 @@ if (FMT_CPPFORMAT)
   add_library(cppformat ${FMT_SOURCES} ${FMT_HEADERS})
 endif ()
 
-# Starting with cmake 3.1 the CXX_STANDARD property can be used instead.
-target_compile_options(fmt PUBLIC ${CPP11_FLAG})
 if (FMT_PEDANTIC)
   target_compile_options(fmt PRIVATE ${PEDANTIC_COMPILE_FLAGS})
 endif ()