diff --git a/Makefile.am b/Makefile.am
index 1a2bc282..777f35f1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -20,7 +20,9 @@ AM_CPPFLAGS = -I$(top_srcdir)/include \
 include_HEADERS=include/uv.h
 
 uvincludedir = $(includedir)/uv
-uvinclude_HEADERS=include/uv/errno.h include/uv/threadpool.h include/uv/version.h
+uvinclude_HEADERS = include/uv/errno.h \
+                    include/uv/threadpool.h \
+                    include/uv/version.h
 
 CLEANFILES =
 
@@ -307,7 +309,9 @@ test_run_tests_SOURCES += test/runner-unix.c \
 endif
 
 if AIX
-test_run_tests_CFLAGS += -D_ALL_SOURCE -D_XOPEN_SOURCE=500 -D_LINUX_SOURCE_COMPAT
+test_run_tests_CFLAGS += -D_ALL_SOURCE \
+                         -D_XOPEN_SOURCE=500 \
+                         -D_LINUX_SOURCE_COMPAT
 endif
 
 if LINUX