diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2addb4ee7..cea0e02f5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -89,6 +89,7 @@ BUG FIXES:
     network adapters. [GH-1886]
   - provisioners/ansible: Execute ansible with a cwd equal to the
     path where the Vagrantfile is. [GH-2051]
+  - provisioners/all: invalid config keys will be properly reported. [GH-2117]
   - provisioners/ansible: No longer report failure on every run. [GH-2007]
   - provisioners/ansible: Properly handle extra vars with spaces. [GH-1984]
   - provisioners/chef: Formatter option works properly. [GH-2058]
diff --git a/plugins/provisioners/ansible/config.rb b/plugins/provisioners/ansible/config.rb
index df265698b..fb162ef27 100644
--- a/plugins/provisioners/ansible/config.rb
+++ b/plugins/provisioners/ansible/config.rb
@@ -47,7 +47,7 @@ module VagrantPlugins
       end
 
       def validate(machine)
-        errors = []
+        errors = _detected_errors
 
         # Validate that a playbook path was provided
         if !playbook
diff --git a/plugins/provisioners/cfengine/config.rb b/plugins/provisioners/cfengine/config.rb
index 5d3cd3f02..73f2f95f1 100644
--- a/plugins/provisioners/cfengine/config.rb
+++ b/plugins/provisioners/cfengine/config.rb
@@ -90,7 +90,7 @@ module VagrantPlugins
       end
 
       def validate(machine)
-        errors = []
+        errors = _detected_errors
 
         valid_modes = [:bootstrap, :single_run]
         errors << I18n.t("vagrant.cfengine_config.invalid_mode") if !valid_modes.include?(@mode)
diff --git a/plugins/provisioners/chef/config/base.rb b/plugins/provisioners/chef/config/base.rb
index aaf69632c..514353813 100644
--- a/plugins/provisioners/chef/config/base.rb
+++ b/plugins/provisioners/chef/config/base.rb
@@ -87,7 +87,7 @@ module VagrantPlugins
         # it returns an array of errors that should be merged into some
         # other error accumulator.
         def validate_base(machine)
-          errors = []
+          errors = _detected_errors
 
           if @custom_config_path
             expanded = File.expand_path(@custom_config_path, machine.env.root_path)
diff --git a/plugins/provisioners/file/config.rb b/plugins/provisioners/file/config.rb
index f7eb6d3ec..a78a19ba8 100644
--- a/plugins/provisioners/file/config.rb
+++ b/plugins/provisioners/file/config.rb
@@ -7,7 +7,7 @@ module VagrantPlugins
       attr_accessor :destination
 
       def validate(machine)
-        errors = []
+        errors = _detected_errors
         if !source
           errors << I18n.t("vagrant.provisioners.file.no_source_file")
         end
diff --git a/plugins/provisioners/puppet/config/puppet.rb b/plugins/provisioners/puppet/config/puppet.rb
index e82774b42..46b3c9f0f 100644
--- a/plugins/provisioners/puppet/config/puppet.rb
+++ b/plugins/provisioners/puppet/config/puppet.rb
@@ -59,7 +59,7 @@ module VagrantPlugins
         end
 
         def validate(machine)
-          errors = []
+          errors = _detected_errors
 
           # Calculate the manifests and module paths based on env
           this_expanded_manifests_path = expanded_manifests_path(machine.env.root_path)
diff --git a/plugins/provisioners/salt/config.rb b/plugins/provisioners/salt/config.rb
index c8e6cf929..77fe6c121 100644
--- a/plugins/provisioners/salt/config.rb
+++ b/plugins/provisioners/salt/config.rb
@@ -79,7 +79,7 @@ module VagrantPlugins
       end
 
       def validate(machine)
-        errors = []
+        errors = _detected_errors
         if @minion_key || @minion_pub
           if !@minion_key || !@minion_pub
             errors << @minion_pub