diff --git a/CHANGELOG.md b/CHANGELOG.md
index a3583c9..9c67148 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,8 @@ and this project **does not adhere to [Semantic Versioning](http://semver.org/sp
 
 ### Fixed
 
+* fix interactive mode detection
+
 ### Security
 
 ## [23.07] - 2023-07-04
diff --git a/minifirewall b/minifirewall
index 286d4ab..3d7c972 100755
--- a/minifirewall
+++ b/minifirewall
@@ -129,10 +129,8 @@ BOLD=''
 RESET=''
 
 # check if stdout is a terminal...
-if [ -t 0 ]; then
+if [ -t 1 ]; then
     INTERACTIVE=1
-elif [ -t 1 ]; then
-    INTERACTIVE=0
 
     # see if it supports colors...
     ncolors=$(tput colors)
@@ -149,6 +147,8 @@ elif [ -t 1 ]; then
         BOLD=$(tput bold)
         RESET='\e[m'
     fi
+else
+    INTERACTIVE=0
 fi
 readonly INTERACTIVE