diff --git a/Makefile.am b/Makefile.am
index 0258ee71..5e26c574 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -151,6 +151,7 @@ dist_tmux_SOURCES = \
 	log.c \
 	mode-key.c \
 	names.c \
+	notify.c \
 	options-table.c \
 	options.c \
 	paste.c \