diff --git a/makefile b/makefile
index 7e797cb..4d2fc0a 100644
--- a/makefile
+++ b/makefile
@@ -6,22 +6,22 @@ LUA_SHAREDIR=$(LUA_PREFIX)/share/lua/5.1
 ldoc:
 
 install: install_parts
-	echo "lua $(LUA_SHAREDIR)/ldoc.lua \$$*" > $(DESTDIR)$(LUA_BINDIR)/ldoc
-	chmod +x $(DESTDIR)$(LUA_BINDIR)/ldoc
+	echo "lua $(LUA_SHAREDIR)/ldoc.lua \$$*" > "$(DESTDIR)$(LUA_BINDIR)/ldoc"
+	chmod +x "$(DESTDIR)$(LUA_BINDIR)/ldoc"
 
 install_luajit: install_parts
-	echo "luajit $(LUA_SHAREDIR)/ldoc.lua \$$*" > $(DESTDIR)$(LUA_BINDIR)/ldoc
-	chmod +x $(DESTDIR)$(LUA_BINDIR)/ldoc
+	echo "luajit $(LUA_SHAREDIR)/ldoc.lua \$$*" > "$(DESTDIR)$(LUA_BINDIR)/ldoc"
+	chmod +x "$(DESTDIR)$(LUA_BINDIR)/ldoc"
 
 install_parts:
-	mkdir -p $(DESTDIR)$(LUA_SHAREDIR)
-	cp ldoc.lua $(DESTDIR)$(LUA_SHAREDIR)
-	cp -r ldoc $(DESTDIR)$(LUA_SHAREDIR)
+	mkdir -p "$(DESTDIR)$(LUA_SHAREDIR)"
+	cp ldoc.lua "$(DESTDIR)$(LUA_SHAREDIR)"
+	cp -r ldoc "$(DESTDIR)$(LUA_SHAREDIR)"
 
 uninstall:
-	-rm $(DESTDIR)$(LUA_SHAREDIR)/ldoc.lua
-	-rm -r $(DESTDIR)$(LUA_SHAREDIR)/ldoc
-	-rm $(DESTDIR)$(LUA_BINDIR)/ldoc
+	-rm "$(DESTDIR)$(LUA_SHAREDIR)/ldoc.lua"
+	-rm -r "$(DESTDIR)$(LUA_SHAREDIR)/ldoc"
+	-rm "$(DESTDIR)$(LUA_BINDIR)/ldoc"
 
 test: test-basic test-example test-md test-tables