diff --git a/Makefile b/Makefile
index 7a5624f..fb22d72 100644
--- a/Makefile
+++ b/Makefile
@@ -2,8 +2,10 @@
 # Makefile
 #
 
+IDIR = ./include
+
 all:
 	@echo "Run 'make install' to install the library"
 
-install: include/libevconf.h
-	install include/libevconf.h -t $(PREFIX)/include -m 644
+install: $(IDIR)/libevconf.h
+	install $(IDIR)/libevconf.h -t $(PREFIX)/include -m 644