diff --git a/Makefile b/Makefile
index bb5c6f6..d1504b7 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,6 @@ clean:
 	rm -f mal ${OBJS}
 
 install:
-	install -Dm755 mal ${DESTDIR}${PREFIX}/bin/mal
+	install -Dm755 mal "${DESTDIR}${PREFIX}"/bin/mal
 
 .PHONY: all clean install