diff --git a/Lib/perl5/noembed.h b/Lib/perl5/noembed.h
index 469c6806a..6ea31faae 100644
--- a/Lib/perl5/noembed.h
+++ b/Lib/perl5/noembed.h
@@ -61,4 +61,7 @@
 #ifdef eof
   #undef eof
 #endif
+#ifdef bool
+  #undef bool
+#endif