diff --git a/assets/project_as_gem.yml b/assets/project_as_gem.yml
index 4f8e0a19..9ef2c2ae 100644
--- a/assets/project_as_gem.yml
+++ b/assets/project_as_gem.yml
@@ -14,7 +14,7 @@
   # optional features. If you don't need them, keep them turned off for performance
   :use_mocks: TRUE
   :use_test_preprocessor: :none  # options are :none, :mocks, :tests, or :all
-  :use_deep_preprocessor: :mocks # options are :none, :mocks, :tests, or :all
+  :use_deep_preprocessor: :none  # options are :none, :mocks, :tests, or :all
   :use_backtrace: :simple        # options are :none, :simple, or :gdb
   :use_decorators: :auto         # decorate Ceedling's output text. options are :auto, :all, or :none
 
diff --git a/assets/project_with_guts.yml b/assets/project_with_guts.yml
index 3cbb438b..23de530c 100644
--- a/assets/project_with_guts.yml
+++ b/assets/project_with_guts.yml
@@ -14,7 +14,7 @@
   # optional features. If you don't need them, keep them turned off for performance
   :use_mocks: TRUE
   :use_test_preprocessor: :none  # options are :none, :mocks, :tests, or :all
-  :use_deep_preprocessor: :mocks # options are :none, :mocks, :tests, or :all
+  :use_deep_preprocessor: :none  # options are :none, :mocks, :tests, or :all
   :use_backtrace: :simple        # options are :none, :simple, or :gdb
   :use_decorators: :auto         # decorate Ceedling's output text. options are :auto, :all, or :none
 
diff --git a/examples/temp_sensor/project.yml b/examples/temp_sensor/project.yml
index 7c19c156..1ee106ac 100644
--- a/examples/temp_sensor/project.yml
+++ b/examples/temp_sensor/project.yml
@@ -14,7 +14,7 @@
   # optional features. If you don't need them, keep them turned off for performance
   :use_mocks: TRUE
   :use_test_preprocessor: :all   # options are :none, :mocks, :tests, or :all
-  :use_deep_preprocessor: :mocks # options are :none, :mocks, :tests, or :all
+  :use_deep_preprocessor: :none  # options are :none, :mocks, :tests, or :all
   :use_backtrace: :none          # options are :none, :simple, or :gdb
   :use_decorators: :auto         # decorate Ceedling's output text. options are :auto, :all, or :none