diff --git a/config.dev.json b/config.dev.json
index 8dfedd8491..f69a24479f 100644
--- a/config.dev.json
+++ b/config.dev.json
@@ -59,6 +59,7 @@
         "UIFeature.urlPreviews" : false,
         "UIFeature.widgets" : false,
         "UIFeature.shareQrCode" : false,
+        "MessageComposerInput.showPollsButton" : false,
         "layout": "bubble",
         "custom_themes": [
             {
diff --git a/config.preprod.json b/config.preprod.json
index dd10f0ec68..6df7b1aed5 100644
--- a/config.preprod.json
+++ b/config.preprod.json
@@ -52,6 +52,7 @@
         "UIFeature.urlPreviews" : false,
         "UIFeature.widgets" : false,
         "UIFeature.shareQrCode" : false,
+        "MessageComposerInput.showPollsButton" : false,
         "layout": "bubble",
         "custom_themes": [
             {
diff --git a/config.prod.json b/config.prod.json
index b63d23562b..2a06944fcf 100644
--- a/config.prod.json
+++ b/config.prod.json
@@ -157,6 +157,7 @@
         "UIFeature.urlPreviews" : false,
         "UIFeature.widgets" : false,
         "UIFeature.shareQrCode" : false,
+        "MessageComposerInput.showPollsButton" : false,
         "layout": "bubble",
         "custom_themes": [
             {
diff --git a/config.sample.json b/config.sample.json
index 8b0d0e8d65..233582f22c 100644
--- a/config.sample.json
+++ b/config.sample.json
@@ -54,6 +54,7 @@
         "breadcrumbs": true,
         "UIFeature.voip": false,
         "UIFeature.shareSocial": false,
+        "MessageComposerInput.showPollsButton" : false,
         "custom_themes": [
             {
                 "name": "Tchap",