diff --git a/plugins/kernel_v2/config/vm_trigger.rb b/plugins/kernel_v2/config/vm_trigger.rb
index 9c45fbf8a..2e95c496a 100644
--- a/plugins/kernel_v2/config/vm_trigger.rb
+++ b/plugins/kernel_v2/config/vm_trigger.rb
@@ -111,14 +111,14 @@ module VagrantPlugins
         end
 
         # Convert @run and @run_remote to be a "Shell provisioner" config
-        if @run
+        if @run && @run.is_a?(Hash)
           new_run = VagrantPlugins::Shell::Config.new()
           new_run.set_options(@run)
           new_run.finalize!
           @run = new_run
         end
 
-        if @run_remote
+        if @run_remote && @run_remote.is_a?(Hash)
           new_run = VagrantPlugins::Shell::Config.new()
           new_run.set_options(@run_remote)
           new_run.finalize!
@@ -135,6 +135,18 @@ module VagrantPlugins
           commands.push(key)
         end
 
+        # TODO: Does it make sense to strip out the "shell provisioner" error key here?
+        #       We could add more context around triggers?
+        if @run
+          errorz = @run.validate(machine)
+          errors.concat errorz["shell provisioner"] if !errorz.empty?
+        end
+
+        if @run_remote
+          errorz = @run_remote.validate(machine)
+          errors.concat errorz["shell provisioner"] if !errorz.empty?
+        end
+
         if !commands.include?(@command)
           machine.ui.warn(I18n.t("vagrant.config.triggers.bad_command_warning",
                                 cmd: @command))