diff --git a/MyxxCMake/MyxxCMakeConfig.cmake b/MyxxCMake/MyxxCMakeConfig.cmake
index fceeebb..778bfe3 100644
--- a/MyxxCMake/MyxxCMakeConfig.cmake
+++ b/MyxxCMake/MyxxCMakeConfig.cmake
@@ -3,7 +3,7 @@ cmake_policy(SET CMP0057 NEW) # IN_LIST operator
 
 get_filename_component(MYXX_CMAKE_SOURCE_DIR "${CMAKE_CURRENT_LIST_FILE}" DIRECTORY)
 
-if(NOT MyxCMake_DIR)
+if(NOT MYX_CMAKE_DIR)
   message(FATAL_ERROR "MyxxCMake library required MyxCMake to work")
 endif()