diff --git a/lxd.spec b/lxd.spec
index a37267e..39bb185 100644
--- a/lxd.spec
+++ b/lxd.spec
@@ -171,7 +171,7 @@ readarray -t mainpkgs \
 	      awk -F: '$1 == "main" { print $2 }' | \
 	      grep -Ev '^github.com/lxc/lxd/(test|shared)')"
 
-# We don't use
+# _dist/src is effectively an old-school "vendor/" tree, so add it to GOPATH.
 export GOPATH="$GOPATH:$PKGDIR/_dist"
 
 # And now we can finally build LXD and all of the related binaries.