--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,10 @@ if (POLICY CMP0069)
     cmake_policy(SET CMP0069 NEW) # Enable LTO/IPO if available in the compiler, see AwsCFlags
 endif()
 
+if (DEFINED ENV{CMAKE_PREFIX_PATH})
+    set(CMAKE_PREFIX_PATH $ENV{CMAKE_PREFIX_PATH})
+endif()
+
 if (DEFINED CMAKE_PREFIX_PATH)
     file(TO_CMAKE_PATH "${CMAKE_PREFIX_PATH}" CMAKE_PREFIX_PATH)
 endif()