diff --git a/server/Makefile.am b/server/Makefile.am
index 484f5a9..7cca6c2 100644
--- a/server/Makefile.am
+++ b/server/Makefile.am
@@ -3,7 +3,7 @@
 bin_PROGRAMS=fspd
 
 fspd_SOURCES=file.c host.c main.c conf.c filecache.c server.c fifocache.c \
-	     log.c iprange.c acl.c path.c random.c
+	     log.c iprange.c acl.c path.c random.c pidfile.c
 fspd_CFLAGS=-DSYSCONFDIR="\"@sysconfdir@\"" $(AM_CFLAGS)
 fspd_LDADD=-L../common -lcommon