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-rw-r--r--tools/Makefile.am2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/Makefile.am b/tools/Makefile.am
index b18dc9b..70b4aed 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -16,7 +16,7 @@
# along with this library; if not, see <http://www.gnu.org/licenses>.
#
-AM_CPPFLAGS = -I$(top_builddir)/include
+AM_CPPFLAGS = -I${top_builddir}/include
noinst_LTLIBRARIES = util.la
util_la_SOURCES = util.c util.h bpf.h