diff --git a/configure.ac b/configure.ac
index b04bee072..c6ededf12 100644
--- a/configure.ac
+++ b/configure.ac
@@ -64,6 +64,7 @@ AC_SUBST(CFLAGS)
 
 # Checks for libraries.
 AC_CHECK_LIB(ncurses,initscr)
+AC_CHECK_LIB(lua,lua_open)
 
 # Checks for header files.
 AC_HEADER_STDC