diff --git a/src/gsm/Makefile.am b/src/gsm/Makefile.am
index ce0b1f4..ca850d2 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -33,7 +33,7 @@
 			gsup.c gsup_sms.c gprs_gea.c gsm0503_conv.c oap.c gsm0808_utils.c \
 			gsm23003.c gsm23236.c mncc.c bts_features.c oap_client.c \
 			gsm29118.c gsm48_rest_octets.c cbsp.c gsm48049.c \
-			gad.c bsslap.c bssmap_le.c kdf.c iuup.c gsm44021.c
+			gad.c bsslap.c bssmap_le.c kdf.c iuup.c gsm44021.c gsm44068.c
 
 libgsmint_la_LDFLAGS = -no-undefined
 libgsmint_la_LIBADD = $(top_builddir)/src/core/libosmocore.la $(top_builddir)/src/isdn/libosmoisdn.la