diff --git a/pressure-vessel/runtime.c b/pressure-vessel/runtime.c
index 8d55fb466c8fabdbf26d3402d658c919e52d82e7..4692ec55eec6dd2fdb726c3164299b2ab8724370 100644
--- a/pressure-vessel/runtime.c
+++ b/pressure-vessel/runtime.c
@@ -74,6 +74,7 @@ struct _PvRuntime
   FlatpakBwrap *container_access_adverb;
   const gchar *runtime_files;   /* either source_files or mutable_sysroot */
   gchar *runtime_usr;           /* either runtime_files or that + "/usr" */
+  gchar *runtime_app;           /* runtime_files + "/app" */
   gchar *runtime_files_on_host;
   const gchar *adverb_in_container;
   gchar *provider_in_current_namespace;
@@ -1393,6 +1394,7 @@ pv_runtime_initable_init (GInitable *initable,
 
   g_mkdir (self->overrides, 0700);
 
+  self->runtime_app = g_build_filename (self->runtime_files, "app", NULL);
   self->runtime_usr = g_build_filename (self->runtime_files, "usr", NULL);
 
   if (g_file_test (self->runtime_usr, G_FILE_TEST_IS_DIR))
@@ -1519,6 +1521,7 @@ pv_runtime_finalize (GObject *object)
   g_free (self->provider_in_host_namespace);
   g_free (self->provider_in_container_namespace);
   g_free (self->runtime_files_on_host);
+  g_free (self->runtime_app);
   g_free (self->runtime_usr);
   g_free (self->source);
   g_free (self->source_files);
@@ -4937,3 +4940,15 @@ pv_runtime_get_modified_usr (PvRuntime *self)
   g_return_val_if_fail (self->mutable_sysroot != NULL, NULL);
   return self->runtime_usr;
 }
+
+const char *
+pv_runtime_get_modified_app (PvRuntime *self)
+{
+  g_return_val_if_fail (PV_IS_RUNTIME (self), NULL);
+  g_return_val_if_fail (self->mutable_sysroot != NULL, NULL);
+
+  if (g_file_test (self->runtime_app, G_FILE_TEST_IS_DIR))
+    return self->runtime_app;
+  else
+    return NULL;
+}
diff --git a/pressure-vessel/runtime.h b/pressure-vessel/runtime.h
index 1fe178e51d1f344945c6d9092460da350706b111..f5424010d87d659c9170d8dbe2772746f6f1fa94 100644
--- a/pressure-vessel/runtime.h
+++ b/pressure-vessel/runtime.h
@@ -103,6 +103,7 @@ gboolean pv_runtime_bind (PvRuntime *self,
                           PvEnviron *container_env,
                           GError **error);
 const char *pv_runtime_get_modified_usr (PvRuntime *self);
+const char *pv_runtime_get_modified_app (PvRuntime *self);
 void pv_runtime_cleanup (PvRuntime *self);
 
 gboolean pv_runtime_garbage_collect_legacy (const char *variable_dir,
diff --git a/pressure-vessel/wrap.c b/pressure-vessel/wrap.c
index bff5bf4b6b3a530d6e655af462ff2feacc0f1214..6f938585825b401bdd6d157c27655d695ad3c182 100644
--- a/pressure-vessel/wrap.c
+++ b/pressure-vessel/wrap.c
@@ -2081,10 +2081,11 @@ main (int argc,
 
       if (flatpak_subsandbox != NULL)
         {
+          const char *app = pv_runtime_get_modified_app (runtime);
           const char *usr = pv_runtime_get_modified_usr (runtime);
 
           flatpak_bwrap_add_args (flatpak_subsandbox,
-                                  "--app-path=",
+                                  "--app-path", app == NULL ? "" : app,
                                   "--share-pids",
                                   "--usr-path", usr,
                                   NULL);