diff --git a/shared/lib/puppet/provider/configure/action.rb b/shared/lib/puppet/provider/configure/action.rb
index d03c0a6..3b6b515 100644
--- a/shared/lib/puppet/provider/configure/action.rb
+++ b/shared/lib/puppet/provider/configure/action.rb
@@ -10,7 +10,9 @@ Puppet::Type.type(:configure).provide(:action) do
   end
 
   def exists?
-    unless? || File.file?(config_status)
+    return true if unless?
+
+    File.file?(config_status)
   end
 
   private
@@ -19,7 +21,7 @@ Puppet::Type.type(:configure).provide(:action) do
   end
 
   def unless?
-    return true if @resource[:unless].empty?
+    return nil if @resource[:unless].empty?
 
     system %{bash -c '#{@resource[:unless]}'}
     $?.exitstatus == 0
diff --git a/shared/lib/puppet/provider/download_and_unpack/action.rb b/shared/lib/puppet/provider/download_and_unpack/action.rb
index 63e7c55..5a1af54 100644
--- a/shared/lib/puppet/provider/download_and_unpack/action.rb
+++ b/shared/lib/puppet/provider/download_and_unpack/action.rb
@@ -15,12 +15,14 @@ Puppet::Type.type(:download_and_unpack).provide(:action) do
   end
 
   def exists?
-    unless? || (File.directory?(File.join(@resource[:src_path], target_dir)))
+    return true if unless?
+
+    File.directory?(File.join(@resource[:src_path], target_dir))
   end
 
   private
   def unless?
-    return true if @resource[:unless].empty?
+    return nil if @resource[:unless].empty?
 
     system %{bash -c '#{@resource[:unless]}'}
 
diff --git a/shared/lib/puppet/provider/make_and_install/action.rb b/shared/lib/puppet/provider/make_and_install/action.rb
index e551656..4e01459 100644
--- a/shared/lib/puppet/provider/make_and_install/action.rb
+++ b/shared/lib/puppet/provider/make_and_install/action.rb
@@ -16,12 +16,14 @@ Puppet::Type.type(:make_and_install).provide(:action) do
   end
 
   def exists?
-    unless? || (File.directory?(@resource[:install_path]) && File.symlink?(symlink_path))
+    return true if unless?
+
+    File.directory?(@resource[:install_path]) && File.symlink?(symlink_path)
   end
 
   private
   def unless?
-    return true if @resource[:unless].empty?
+    return nil if @resource[:unless].empty?
 
     system %{bash -c '#{@resource[:unless]}'}
     $?.exitstatus == 0