diff --git a/kiss b/kiss
index 21e9335..f1be697 100755
--- a/kiss
+++ b/kiss
@@ -1152,10 +1152,13 @@ pkg_install() {
     trap pkg_clean EXIT INT
 
     if [ -x "$sys_db/$pkg_name/post-install" ]; then
-        log "$pkg_name" "Running post-install hook"; {
-            log "$pkg_name" "post-install log"
-            "$sys_db/$pkg_name/post-install"
-        } 2>&1 | tee -a "$log_dir/post-install-$time-$pid" >/dev/null
+        log "$pkg_name" "Running post-install hook"
+
+        hook_output=$("$sys_db/$pkg_name/post-install" 2>&1)
+
+        [ -z "$hook_output" ] ||
+            printf '=> %s post-install log\n%s\n' "$pkg_name" "$hook_output" |
+            tee -a "$log_dir/post-install-$time-$pid" >/dev/null
     fi
 
     run_hook post-install "$pkg_name" "$sys_db/$pkg_name"