diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7e7e307..cb0aaed 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,6 +42,10 @@ ENDIF()
 
 IF(DJGPP_WATT32)
     SET(CMAKE_SYSTEM_NAME MSDOS)
+    SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+    SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+    SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+    SET(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
     SET(UMSKT_LINK_LIBS ${UMSKT_LINK_LIBS} ${DJGPP_WATT32})
     SET(UMSKT_LINK_DIRS ${UMSKT_LINK_DIRS} ${WATT_ROOT}/lib)
 ENDIF()