diff --git a/scripts/mkspec-wrapper.sh b/scripts/mkspec-wrapper.sh
index aef62db8..0ac92820 100644
--- a/scripts/mkspec-wrapper.sh
+++ b/scripts/mkspec-wrapper.sh
@@ -80,7 +80,7 @@ done
 shift
 
 os=$(sed '/^ID=/ !d; s/^ID=//; s/"//g' /etc/os-release)
-[ ! "$INSTALL_LOG" ] && INSTALL_LOG=/tmp/pkg-build-$ID-$(id -un)-$os/install.log
+[ ! "$INSTALL_LOG" ] && INSTALL_LOG=/tmp/pkg-build-$PROJECT-$(id -un)-$os/install.log
 
 MKSPEC_SH="$1"
 shift
@@ -132,4 +132,3 @@ export \
 	DISTRIBUTION
 
 bash $MKSPEC_SH
-