diff --git a/.gitignore b/.gitignore
index 5c51ed50..7a510743 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,14 @@
 *.la
 *.a
 
+# build artifacts
+mergerfs
+obj/
+src/version.hpp
+
 # Debian files
 debian/files
 debian/changelog
+
+# RPM files
+rpmbuild/
diff --git a/Makefile b/Makefile
index 765c1b88..414f54ec 100644
--- a/Makefile
+++ b/Makefile
@@ -219,7 +219,7 @@ rpm-clean:
 rpm: tarball
 	$(eval VERSION := $(shell $(GIT) describe --always --tags --dirty))
 	$(eval VERSION := $(subst -,_,$(VERSION)))
-	$(MKDIR) -p rpmbuild/{BUILD,RPMS,SOURCES}
+	$(MKDIR) -p rpmbuild/BUILD rpmbuild/RPMS rpmbuild/SOURCES
 	$(SED) 's/__VERSION__/$(VERSION)/g' $(TARGET).spec > \
 		rpmbuild/SOURCES/$(TARGET).spec
 	cp -ar $(TARGET)-$(VERSION).tar.gz rpmbuild/SOURCES