diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56009a921..5cd105f62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ BUG FIXES:
 
   - core: Hostnames can be one character. [GH-3713]
   - core: Don't lock machines on SSH actions. [GH-3664]
+  - provisioners/shell: Fix shell provisioner config validation when the
+    `binary` option is set to false [GH-3712]
   - providers/docker: default proxy VM won't use HGFS [GH-3687]
   - providers/docker: fix container linking [GH-3719]
   - providers/docker: Port settings expose to host properly. [GH-3723]
diff --git a/plugins/provisioners/shell/provisioner.rb b/plugins/provisioners/shell/provisioner.rb
index 17034fa7b..74fa4fa57 100644
--- a/plugins/provisioners/shell/provisioner.rb
+++ b/plugins/provisioners/shell/provisioner.rb
@@ -154,7 +154,7 @@ module VagrantPlugins
 
         # Replace Windows line endings with Unix ones unless binary file
         # or we're running on Windows.
-        if !config.binary && config.vm.communicator != :winrm
+        if !config.binary && @machine.config.vm.communicator != :winrm
           script.gsub!(/\r\n?$/, "\n")
         end