diff --git a/direct/src/autorestart/CMakeLists.txt b/direct/src/autorestart/CMakeLists.txt
index 31524487c5..3293a08e08 100644
--- a/direct/src/autorestart/CMakeLists.txt
+++ b/direct/src/autorestart/CMakeLists.txt
@@ -1,3 +1,5 @@
-add_executable(autorestart autorestart.c)
-set_target_properties(autorestart PROPERTIES COMPILE_DEFINITIONS WITHIN_PANDA)
-target_link_libraries(autorestart p3dtool)
+if(UNIX)
+  add_executable(autorestart autorestart.c)
+  set_target_properties(autorestart PROPERTIES COMPILE_DEFINITIONS WITHIN_PANDA)
+  target_link_libraries(autorestart p3dtool)
+endif()