diff -r 671df13f1304 -r 52ac1fcbdbbe pre-inst/pre-inst.c
--- a/pre-inst/pre-inst.c	Wed Aug 22 23:29:22 2018 +0100
+++ b/pre-inst/pre-inst.c	Fri Mar 08 13:50:52 2019 +0000
@@ -358,7 +358,7 @@
     int exit_status;
 #endif
     GError *tmp_error=NULL;
-    if (argc<1)
+    if (argc<2)
     {
 	g_set_error_literal(error,G_FILE_ERROR,G_FILE_ERROR_NOENT,
 	  "--post: No command given");
@@ -519,7 +519,7 @@
 	success=!!pre_install(path);
 #endif
     }
-    if (enable_post && !run_post(argc-1,argv+1,success,&error))
+    if (enable_post && !run_post(argc,argv,success,&error))
     {
 #ifndef WIN32
 	fprintf(stderr,"Error in post: %s\n",error->message);