diff --git a/Makefile b/Makefile
index 5900c5c..b2233c4 100644
--- a/Makefile
+++ b/Makefile
@@ -9,6 +9,7 @@
 
 .POSIX:
 .PRAGMA: posix_202x # future POSIX standard support à la pdpmake(1)
+.PRAGMA: command_comment # breaks without this?
 
 PREFIX=/usr/local