diff --git a/Makefile b/Makefile
index cada247..9d320b0 100644
--- a/Makefile
+++ b/Makefile
@@ -44,12 +44,13 @@ install_head: $(IDIR)/config.h $(IDIR)/data.h $(IDIR)/log.h $(IDIR)/pkgops.h $(I
 	@echo "[INFO]"
 	@echo "[INFO] Installing header files to PREFIX/include/glacier..."
 	@echo "[INFO]"
-	install $(IDIR)/config.h $(PREFIX)/include/glacier
-	install $(IDIR)/data.h $(PREFIX)/include/glacier
-	install $(IDIR)/log.h $(PREFIX)/include/glacier
-	install $(IDIR)/pkgops.h $(PREFIX)/include/glacier
-	install $(IDIR)/runtime.h $(PREFIX)/include/glacier
-	install $(IDIR)/security.h $(PREFIX)/include/glacier
+	mkdir -p $(PREFIX)/include/glacier
+	install $(IDIR)/config.h -t $(PREFIX)/include/glacier -m 644
+	install $(IDIR)/data.h -t $(PREFIX)/include/glacier -m 644
+	install $(IDIR)/log.h -t $(PREFIX)/include/glacier -m 644
+	install $(IDIR)/pkgops.h -t $(PREFIX)/include/glacier -m 644
+	install $(IDIR)/runtime.h -t $(PREFIX)/include/glacier -m 644
+	install $(IDIR)/security.h -t $(PREFIX)/include/glacier -m 644
 
 install: install_lib install_head
 	@echo "[INFO]"