diff --git a/src/Makefile.am b/src/Makefile.am
index 5724055..a0aa5a0 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -23,6 +23,12 @@
 			 macaddr.c stat_item.c stats.c stats_statsd.c prim.c \
 			 viterbi.c viterbi_gen.c sercomm.c
 
+if HAVE_SSE3
+libosmocore_la_SOURCES += viterbi_sse.c
+# Per-object flags hack
+viterbi_sse.lo : CFLAGS += $(SIMD_FLAGS)
+endif
+
 BUILT_SOURCES = crc8gen.c crc16gen.c crc32gen.c crc64gen.c
 
 if ENABLE_PLUGIN