diff --git a/CMakeLists.txt b/CMakeLists.txt
index 50b6685b..2aabae55 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -109,6 +109,7 @@ if (WIN32)
         set(PNGLIB spng::spng)
       endif()
       set(VORBISLIB Vorbis::vorbis Vorbis::vorbisfile)
+    else()
       find_package(Lua REQUIRED)
       set(PNGLIB spng)
       set(VORBISLIB vorbis vorbisfile) # not tested