diff --git a/include/CMakeLists.txt b/include/CMakeLists.txt
index 6f88d504a..09ed5f271 100644
--- a/include/CMakeLists.txt
+++ b/include/CMakeLists.txt
@@ -92,7 +92,7 @@ else()
       if(CXXFS_SUPPORTED)
         target_link_libraries(cpr PUBLIC c++fs)
       else()
-        message(FATAL_ERROR "<filesystem> support could not be found")
+        message(FATAL_ERROR "Your compiler does not support the `<filesystem>` include or cpr is unable to determine the proper compiler flags for it.")
       endif()
     endif()
   endif()