diff --git a/breathe/filetypes.py b/breathe/filetypes.py
index f64b0092..47bce1a5 100644
--- a/breathe/filetypes.py
+++ b/breathe/filetypes.py
@@ -18,4 +18,4 @@ def get_extension(filename: str) -> str:
     # If the filename is just '.ext' then we get ('.ext', '') so we fall back to first part if
     # the second isn't there
     (first, second) = os.path.splitext(filename)
-    return (second or first).lstrip(".")
+    return (second or first).lstrip(".").replace("unparsed", "text")
diff --git a/documentation/source/codeblocks.rst b/documentation/source/codeblocks.rst
index ca3ed92e..fff93ec9 100644
--- a/documentation/source/codeblocks.rst
+++ b/documentation/source/codeblocks.rst
@@ -91,6 +91,11 @@ recognize the code block's contained syntax as a C++ snippet.
     *     message(STATUS "Element is ${element}")
     * endforeach()
     * @endcode
+    * 
+    * Another code-block that explicitly remains not highlighted.
+    * @code{.unparsed}
+    * Show this as is.
+    * @endcode
     */
    void with_unannotated_cmake_code_block();
 
diff --git a/examples/specific/code_blocks.h b/examples/specific/code_blocks.h
index 390616ba..d2ee92d1 100644
--- a/examples/specific/code_blocks.h
+++ b/examples/specific/code_blocks.h
@@ -16,6 +16,11 @@ void with_standard_code_block();
  *     message(STATUS "Element is ${element}")
  * endforeach()
  * @endcode
+ * 
+ * Another code-block that explicitly remains not highlighted.
+ * @code{.unparsed}
+ * Show this as is.
+ * @endcode
  */
 void with_unannotated_cmake_code_block();