diff --git a/isync-1.0.1_missing_sentinel.patch b/isync-1.0.1_missing_sentinel.patch
new file mode 100644
index 0000000..c5c0db0
--- /dev/null
+++ b/isync-1.0.1_missing_sentinel.patch
@@ -0,0 +1,13 @@
+Index: src/drv_imap.c
+===================================================================
+--- src/drv_imap.c.orig
++++ src/drv_imap.c
+@@ -1229,7 +1229,7 @@
+ 				_exit( 127 );
+ 			close( a[0] );
+ 			close( a[1] );
+-			execl( "/bin/sh", "sh", "-c", srvc->tunnel, 0 );
++			execl( "/bin/sh", "sh", "-c", srvc->tunnel, NULL );
+ 			_exit( 127 );
+ 		}
+