diff --git a/scripts/mkspec-wrapper.sh b/scripts/mkspec-wrapper.sh
index 56bda025..81519e62 100644
--- a/scripts/mkspec-wrapper.sh
+++ b/scripts/mkspec-wrapper.sh
@@ -75,8 +75,8 @@ shift
 done
 shift
 
-ID=`whoami`
-[ ! "$INSTALL_LOG" ] && INSTALL_LOG=/tmp/pkg-build-$ID-$NAME/install.log
+os=$(sed '/^ID=/ !d; s/^ID=//; s/"//g' /etc/os-release)
+[ ! "$INSTALL_LOG" ] && INSTALL_LOG=/tmp/pkg-build-$ID-$(id -un)-$os/install.log
 
 MKSPEC_SH="$1"
 shift