diff --git a/etc/defaults.conf b/etc/defaults.conf
index d69b4a45408..f70e4ea3d00 100644
--- a/etc/defaults.conf
+++ b/etc/defaults.conf
@@ -64,7 +64,8 @@ XBPS_SUCMD="sudo /bin/sh -c"
 
 # [OPTIONAL]
 # Number of parallel jobs to execute when building packages that
-# use make(1) or alike commands.
+# use make(1) or alike commands. Defaults to the result of nproc(1).
+# If nproc(1) is not available, defaults to 1.
 #
 #XBPS_MAKEJOBS=4