diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index eeea980c..b8699865 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,7 +10,7 @@ jobs:
   test:
     strategy:
       matrix:
-        platform: [ubuntu-latest, macos-latest, ubuntu-18.04]
+        platform: [ubuntu-latest, macos-latest, ubuntu-18.04, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:
     - uses: actions/checkout@v2
diff --git a/.gitignore b/.gitignore
index 73f74b61..1c3cf10b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,5 @@ tests/trash\ directory.*
 done.txt
 report.txt
 todo.txt
+todo.txt_cli-*.tar.gz
+todo.txt_cli-*.zip
diff --git a/Makefile b/Makefile
index 58c1e697..0f89ec14 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,12 @@ INSTALL_DATA = $(INSTALL) -m 644
 
 prefix = /usr/local
 
+ifeq ($(OS), Windows_NT)
+	ZIP_PROGRAM=7z a -r
+else
+	ZIP_PROGRAM=zip -r -9
+endif
+
 # ifdef check allows the user to pass custom dirs
 # as per the README
 
@@ -48,38 +54,38 @@ DISTFILES := todo.cfg todo_completion
 
 DISTNAME=todo.txt_cli-$(VERSION)
 dist: $(DISTFILES) todo.sh
-	mkdir -p $(DISTNAME)
-	cp -f $(DISTFILES) $(DISTNAME)/
-	sed -e 's/@DEV_VERSION@/'$(VERSION)'/' todo.sh > $(DISTNAME)/todo.sh
-	chmod +x $(DISTNAME)/todo.sh
-	tar cf $(DISTNAME).tar $(DISTNAME)
-	gzip -f -9 $(DISTNAME).tar
-	zip -r -9 $(DISTNAME).zip $(DISTNAME)
-	rm -r $(DISTNAME)
+	mkdir -p "$(DISTNAME)"
+	cp -f $(DISTFILES) "$(DISTNAME)/"
+	sed -e 's/@DEV_VERSION@/'$(VERSION)'/' todo.sh > "$(DISTNAME)/todo.sh"
+	chmod +x "$(DISTNAME)/todo.sh"
+	tar cf $(DISTNAME).tar "$(DISTNAME)"
+	gzip -f -9 "$(DISTNAME).tar"
+	$(ZIP_PROGRAM) "$(DISTNAME).zip" "$(DISTNAME)"
+	rm -r "$(DISTNAME)"
 
 .PHONY: clean
 clean: test-pre-clean
-	rm -f $(DISTNAME).tar.gz $(DISTNAME).zip
-	rm VERSION-FILE
+	rm -f "$(DISTNAME).tar.gz" "$(DISTNAME).zip"
+	rm "VERSION-FILE"
 
 install: installdirs
-	$(INSTALL_PROGRAM) todo.sh $(DESTDIR)$(bindir)/todo.sh
-	$(INSTALL_DATA) todo_completion $(DESTDIR)$(datarootdir)/todo
-	[ -e $(DESTDIR)$(sysconfdir)/todo/config ] || \
-	    sed "s/^\(export[ \t]*TODO_DIR=\).*/\1~\/.todo/" todo.cfg > $(DESTDIR)$(sysconfdir)/todo/config
+	$(INSTALL_PROGRAM) todo.sh "$(DESTDIR)$(bindir)/todo.sh"
+	$(INSTALL_DATA) todo_completion "$(DESTDIR)$(datarootdir)/todo"
+	[ -e "$(DESTDIR)$(sysconfdir)/todo/config" ] || \
+		sed "s/^\(export[ \t]*TODO_DIR=\).*/\1~\/.todo/" todo.cfg > "$(DESTDIR)$(sysconfdir)/todo/config"
 
 uninstall:
-	rm -f $(DESTDIR)$(bindir)/todo.sh
-	rm -f $(DESTDIR)$(datarootdir)/todo
-	rm -f $(DESTDIR)$(sysconfdir)/todo/config
+	rm -f "$(DESTDIR)$(bindir)/todo.sh"
+	rm -f "$(DESTDIR)$(datarootdir)/todo"
+	rm -f "$(DESTDIR)$(sysconfdir)/todo/config"
 
-	rmdir $(DESTDIR)$(datarootdir)
-	rmdir $(DESTDIR)$(sysconfdir)/todo
+	rmdir "$(DESTDIR)$(datarootdir)"
+	rmdir "$(DESTDIR)$(sysconfdir)/todo"
 
 installdirs:
-	mkdir -p $(DESTDIR)$(bindir) \
-	         $(DESTDIR)$(sysconfdir)/todo \
-	         $(DESTDIR)$(datarootdir)
+	mkdir -p "$(DESTDIR)$(bindir)" \
+			 "$(DESTDIR)$(sysconfdir)/todo" \
+			 "$(DESTDIR)$(datarootdir)"
 
 #
 # Testing
@@ -88,7 +94,7 @@ TESTS = $(wildcard tests/t[0-9][0-9][0-9][0-9]-*.sh)
 #TEST_OPTIONS=--verbose
 
 test-pre-clean:
-	rm -rf tests/test-results "tests/trash directory"*
+	rm -rf "tests/test-results" "tests/trash directory"*
 
 aggregate-results: $(TESTS)
 
@@ -98,7 +104,7 @@ $(TESTS): test-pre-clean
 test: aggregate-results
 	tests/aggregate-results.sh tests/test-results/t*-*
 	rm -rf tests/test-results
-    
+
 # Force tests to get run every time
 .PHONY: test test-pre-clean aggregate-results $(TESTS)