diff --git a/Makefile b/Makefile
index d8d59a4..10b78ab 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,8 @@
 CC ?= gcc
 GIT_VERSION := "$(shell git describe --abbrev=6 --always --tags)"
-AM_CFLAGS = -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2
-CFLAGS ?= -g -O2 -DVERSION=\"$(GIT_VERSION)\"
+AM_CFLAGS = -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 \
+	    -DVERSION=\"$(GIT_VERSION)\"
+CFLAGS ?= -g -O2
 objects = \
 	mmc.o \
 	mmc_cmds.o \