diff --git a/makepanda/makepanda.py b/makepanda/makepanda.py
index b12efa0348..f2ff634b19 100755
--- a/makepanda/makepanda.py
+++ b/makepanda/makepanda.py
@@ -3249,7 +3249,8 @@ if (RUNTIME):
   TargetAdd('plugin_standalone_panda3d.obj', opts=OPTS, input='panda3d.cxx')
   TargetAdd('panda3d.exe', input='plugin_standalone_panda3d.obj')
   TargetAdd('panda3d.exe', input='plugin_common.obj')
-  TargetAdd('panda3d.exe', input='plugin_find_root_dir_assist.obj')
+  if (sys.platform == "darwin"):
+    TargetAdd('panda3d.exe', input='plugin_find_root_dir_assist.obj')
   TargetAdd('panda3d.exe', input='libpandaexpress_s.ilb')
   TargetAdd('panda3d.exe', input='libp3dtoolconfig_s.ilb')
   TargetAdd('panda3d.exe', input='libp3dtool_s.ilb')