diff --git a/lib/Makefile b/lib/Makefile
index 6cdb10f..7f6eda4 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -38,6 +38,7 @@
 
 lib-$(CONFIG_TEXTSEARCH) += textsearch.o
 obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
+obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o
 
 hostprogs-y	:= gen_crc32table
 clean-files	:= crc32table.h