diff --git a/init.d/fdfs_storaged b/init.d/fdfs_storaged
index e9c334a..0a90136 100755
--- a/init.d/fdfs_storaged
+++ b/init.d/fdfs_storaged
@@ -10,7 +10,9 @@
 ### END INIT INFO
 
 # Source function library.
-. /etc/init.d/functions
+if [ -f /etc/init.d/functions ]; then
+  . /etc/init.d/functions
+fi
 
 PRG=/usr/bin/fdfs_storaged
 CONF=/etc/fdfs/storage.conf
diff --git a/init.d/fdfs_trackerd b/init.d/fdfs_trackerd
index a5df64b..fe1b369 100755
--- a/init.d/fdfs_trackerd
+++ b/init.d/fdfs_trackerd
@@ -10,7 +10,9 @@
 ### END INIT INFO
 
 # Source function library.
-. /etc/init.d/functions
+if [ -f /etc/init.d/functions ]; then
+  . /etc/init.d/functions
+fi
 
 PRG=/usr/bin/fdfs_trackerd
 CONF=/etc/fdfs/tracker.conf