diff --git a/src/unixfork.c b/src/unixfork.c
index 0272062..d9779d7 100644
--- a/src/unixfork.c
+++ b/src/unixfork.c
@@ -420,6 +420,7 @@ int fork_Unix() {
           } else /* old style, no args */
           {
             termtype[0] = 0;
+            cmdstring = shcom;
             cmdstring[0] = 0;
           }