diff --git a/impls/.gitignore b/impls/.gitignore
index c1371974..0e096052 100644
--- a/impls/.gitignore
+++ b/impls/.gitignore
@@ -81,6 +81,7 @@ kotlin/.idea
 kotlin/*.iml
 lua/lib
 lua/linenoise.so
+lua/rex_pcre.so
 lua/mal.lua
 make/mal.mk
 mal/mal.mal
diff --git a/impls/lua/Makefile b/impls/lua/Makefile
index afa700c3..8c8fb289 100644
--- a/impls/lua/Makefile
+++ b/impls/lua/Makefile
@@ -23,13 +23,17 @@ mal: mal.lua
 
 
 clean:
-	rm -f linenoise.so mal.lua mal
+	rm -f linenoise.so rex_pcre.so mal.lua mal
 	rm -rf lib
 
 .PHONY: libs
-libs: linenoise.so
+libs: linenoise.so rex_pcre.so
 
 linenoise.so:
 	luarocks install --tree=./ linenoise
 	ln -sf $$(find . -name linenoise.so) $@
 
+rex_pcre.so:
+	luarocks install --tree=./ lrexlib-pcre
+	ln -sf $$(find . -name rex_pcre.so) $@
+