diff --git a/setup-audio.sh b/setup-audio.sh
index ef1776f..f8528dd 100755
--- a/setup-audio.sh
+++ b/setup-audio.sh
@@ -184,6 +184,22 @@ echo "      Installed $OVERLAYS/i2s-audio.dtbo"
 echo "[3/7] Configuring config.txt..."
 CHANGED=0
 
+if grep -q '^dtparam=i2c_arm=on' "$CONFIG"; then
+    echo "      dtparam=i2c_arm=on already set."
+elif grep -q '^#.*dtparam=i2c_arm=on' "$CONFIG"; then
+    sed -i 's/^#.*dtparam=i2c_arm=on/dtparam=i2c_arm=on/' "$CONFIG"
+    CHANGED=1
+    echo "      Uncommented dtparam=i2c_arm=on."
+else
+    if grep -q '^dtparam=audio=on' "$CONFIG"; then
+        sed -i '/^dtparam=audio=on/a dtparam=i2c_arm=on' "$CONFIG"
+    else
+        echo "dtparam=i2c_arm=on" >> "$CONFIG"
+    fi
+    CHANGED=1
+    echo "      Added dtparam=i2c_arm=on."
+fi
+
 if grep -q '^dtparam=i2s=on' "$CONFIG"; then
     echo "      dtparam=i2s=on already set."
 elif grep -q '^#.*dtparam=i2s=on' "$CONFIG"; then