diff --git a/test-data/phony-guests/Makefile.am b/test-data/phony-guests/Makefile.am
index 0b574d741..08b14e50b 100644
--- a/test-data/phony-guests/Makefile.am
+++ b/test-data/phony-guests/Makefile.am
@@ -158,7 +158,4 @@ DISTCLEANFILES = \
 # Don't construct the guests in parallel.  In automake 1.13, check_DATA
 # was changed so it can now run in parallel, but this causes everything
 # to fall over on machines with limited memory.
-#
-# ALSO: the guestfish rules above for making the blank-*.img files are
-# NOT safe to run in parallel.
 .NOTPARALLEL: