diff --git a/lib/Makefile.am b/lib/Makefile.am
index 1c482ef6..96dfefe2 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -141,6 +141,7 @@ libshadow_la_SOURCES = \
 	stpecpy.h \
 	stpeprintf.c \
 	stpeprintf.h \
+	strtcpy.c \
 	strtcpy.h \
 	strtoday.c \
 	sub.c \