diff --git a/GNUmakefile b/GNUmakefile
index e75d63dc..d52646dc 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -19,7 +19,8 @@ CC=cc
 CFLAGS=-O3 -Lbuild/lib
 
 ifeq ($(CC), gcc)
-	CFLAGS=-O3 -s -Wl,-z,noseparate-code,-z,nosectionheader -flto -Lbuild/lib
+	CFLAGS=-O3 -s -Wl,-z,noseparate-code,-z,nosectionheader -flto \
+		-Lbuild/lib
 endif
 
 ifeq ($(CC), clang)
@@ -39,7 +40,8 @@ clean:
 	rm -rf build/
 
 install: build
-	mkdir -p $(PREFIX)/bin $(PREFIX)/lib $(PREFIX)/man/man1 $(PREFIX)/man/man3
+	mkdir -p $(PREFIX)/bin $(PREFIX)/lib
+	mkdir -p $(PREFIX)/man/man1 $(PREFIX)/man/man3
 	cp -f build/lib/*.so $(PREFIX)/lib/
 	cp -f build/bin/* $(PREFIX)/bin/
 	cp -f docs/*.1 $(PREFIX)/man/man1/