diff --git a/cppformat/CMakeLists.txt b/cppformat/CMakeLists.txt
index 9e8bf4ff..fe11c664 100644
--- a/cppformat/CMakeLists.txt
+++ b/cppformat/CMakeLists.txt
@@ -12,9 +12,6 @@ if (FMT_PEDANTIC)
   target_compile_options(cppformat PRIVATE ${PEDANTIC_COMPILE_FLAGS})
 endif ()
 
-target_compile_definitions(cppformat INTERFACE
-  FMT_USE_FILE_DESCRIPTORS=$<BOOL:${HAVE_OPEN}>)
-
 target_include_directories(cppformat INTERFACE
   $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>
   $<INSTALL_INTERFACE:include>)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 1a19a976..f082453e 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -56,7 +56,8 @@ function(add_fmt_test name)
   # define if certain c++ features can be used
   target_compile_definitions(${name} PRIVATE
     FMT_USE_TYPE_TRAITS=$<BOOL:${SUPPORTS_TYPE_TRAITS}>
-    FMT_USE_ENUM_BASE=$<BOOL:${SUPPORTS_ENUM_BASE}>)
+    FMT_USE_ENUM_BASE=$<BOOL:${SUPPORTS_ENUM_BASE}>
+    FMT_USE_FILE_DESCRIPTORS=$<BOOL:${HAVE_OPEN}>)
   if (FMT_PEDANTIC)
     target_compile_options(${name} PRIVATE ${PEDANTIC_COMPILE_FLAGS})
   endif ()