diff --git a/src/gsm/Makefile.am b/src/gsm/Makefile.am
index 828aa50..f119a74 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -20,7 +20,7 @@
 			auth_core.c auth_comp128v1.c auth_comp128v23.c \
 			auth_milenage.c milenage/aes-encblock.c \
 			milenage/aes-internal.c milenage/aes-internal-enc.c \
-			milenage/milenage.c gan.c ipa.c
+			milenage/milenage.c gan.c ipa.c gsm0341.c
 
 libosmogsm_la_LDFLAGS = $(LTLDFLAGS_OSMOGSM) -version-info $(LIBVERSION) -no-undefined
 libosmogsm_la_LIBADD = $(top_builddir)/src/libosmocore.la