2 files changed, 2 insertions, 0 deletions
diff --git a/src/libexecline/exlsn_main.c b/src/libexecline/exlsn_main.c
index 0fe7bd1..c7747de 100644
--- a/src/libexecline/exlsn_main.c
+++ b/src/libexecline/exlsn_main.c
@@ -12,6 +12,7 @@ void exlsn_main (int argc, char const **argv, char const *const *envp, exlsnfunc
   int r = (*func)(argc, argv, envp, &info) ;
   if (r < 0) switch (r)
   {
+    case -4 : strerr_dief1x(100, "empty block") ;
     case -3 : strerr_dieusage(100, usage) ;
     case -2 : strerr_dief1x(111, "bad substitution key") ;
     case -1 : strerr_diefu1sys(111, "complete exlsn function") ;
diff --git a/src/libexecline/exlsn_multidefine.c b/src/libexecline/exlsn_multidefine.c
index bf50087..c28d926 100644
--- a/src/libexecline/exlsn_multidefine.c
+++ b/src/libexecline/exlsn_multidefine.c
@@ -41,6 +41,7 @@ int exlsn_multidefine (int argc, char const **argv, char const *const *envp, exl
   x = argv[0] ;
   argv++ ; argc-- ;
   argc1 = el_semicolon(argv) ;
+  if (!argc1) return -4 ;
   if (argc1 >= argc) return -3 ;
   if (!stralloc_cats(&info->values, x)) return -1 ;
   {