diff --git a/lib/Makefile.am b/lib/Makefile.am
index 590f0ec..756d566 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -2,6 +2,6 @@
 
 noinst_HEADERS = gnugetopt.h ippool.h lookup.h syserr.h tun.h
 
-AM_CFLAGS = -O2 -fno-builtin -Wall -DSBINDIR='"$(sbindir)"' -ggdb
+AM_CFLAGS = -O2 -fno-builtin -Wall -DSBINDIR='"$(sbindir)"' -ggdb $(LIBOSMOCORE_CFLAGS)
 
 libmisc_a_SOURCES = getopt1.c getopt.c ippool.c lookup.c tun.c debug.c