diff --git a/sys-1.1-0.rockspec b/sys-1.1-0.rockspec
index 417fb3d..5b89348 100644
--- a/sys-1.1-0.rockspec
+++ b/sys-1.1-0.rockspec
@@ -21,6 +21,6 @@ dependencies = {
 
 build = {
    type = "command",
-   build_command = [[cmake -E make_directory build && cd build && cmake .. -DLUALIB=$(LUALIB) -DCMAKE_BUILD_TYPE=Release  -DCMAKE_INSTALL_PREFIX="$(PREFIX)" && $(MAKE)]],
+   build_command = [[cmake -E make_directory build && cd build && cmake .. -DLUALIB=$(LUALIB) -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$(LUA_BINDIR)/.." -DCMAKE_INSTALL_PREFIX="$(PREFIX)" && $(MAKE)]],
    install_command = "cd build && $(MAKE) install"
 }