diff --git a/pylint/pyreverse/main.py b/pylint/pyreverse/main.py
index 452059458d..3ba0b6c77d 100644
--- a/pylint/pyreverse/main.py
+++ b/pylint/pyreverse/main.py
@@ -14,7 +14,7 @@
 from pylint.config.arguments_manager import _ArgumentsManager
 from pylint.config.arguments_provider import _ArgumentsProvider
 from pylint.lint import discover_package_path
-from pylint.lint.utils import augmented_sys_path, realpath_transformer
+from pylint.lint.utils import augmented_sys_path
 from pylint.pyreverse import writer
 from pylint.pyreverse.diadefslib import DiadefsHandler
 from pylint.pyreverse.inspector import Linker, project_from_files
@@ -304,11 +304,7 @@ def run(self, args: list[str]) -> int:
         extra_packages_paths = list(
             {discover_package_path(arg, self.config.source_roots) for arg in args}
         )
-        # Prefer package paths detected per module over global PYTHONPATH additions
-        extra_sys_paths = extra_packages_paths + realpath_transformer(
-            self.config.pythonpath
-        )
-        with augmented_sys_path(extra_sys_paths):
+        with augmented_sys_path(extra_packages_paths):
             project = project_from_files(
                 args,
                 project_name=self.config.project,