diff --git a/CMakeLists.txt b/CMakeLists.txt
index dada17b0..e33c2de6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -45,7 +45,7 @@ include(ExternalProject)
 ExternalProject_Add(lpeg
 		    URL "https://s3.amazonaws.com/download.draios.com/dependencies/lpeg-1.0.0.tar.gz"
                     URL_MD5 "0aec64ccd13996202ad0c099e2877ece"
-                    BUILD_COMMAND LUA_INCLUDE=/sysdig/digwatch/build-ubuntu/sysdig/luajit-prefix/src/luajit/src ${PROJECT_SOURCE_DIR}/scripts/build-lpeg.sh
+                    BUILD_COMMAND LUA_INCLUDE=${LUAJIT_INCLUDE_DIR} ${PROJECT_SOURCE_DIR}/scripts/build-lpeg.sh
                     BUILD_IN_SOURCE 1
 		    CONFIGURE_COMMAND ""
                     INSTALL_COMMAND cp lpeg.so re.lua ${PROJECT_SOURCE_DIR}/userspace/digwatch/lua)