diff --git a/imports/Spectral/Dialog/InviteUserDialog.qml b/imports/Spectral/Dialog/InviteUserDialog.qml
index b14e4da2d..0291fe58d 100644
--- a/imports/Spectral/Dialog/InviteUserDialog.qml
+++ b/imports/Spectral/Dialog/InviteUserDialog.qml
@@ -13,8 +13,8 @@ Dialog {
     property var room
 
     anchors.centerIn: parent
-    width: 480
-    height: window.height - 100
+    width: 360
+    height: Math.min(window.height - 100, 640)
 
     id: root
 
diff --git a/imports/Spectral/Dialog/JoinRoomDialog.qml b/imports/Spectral/Dialog/JoinRoomDialog.qml
index c8df13dbd..9134b98e0 100644
--- a/imports/Spectral/Dialog/JoinRoomDialog.qml
+++ b/imports/Spectral/Dialog/JoinRoomDialog.qml
@@ -17,7 +17,7 @@ Dialog {
 
     anchors.centerIn: parent
     width: 480
-    height: window.height - 100
+    height: Math.min(window.height - 100, 800)
 
     id: root
 
diff --git a/imports/Spectral/Dialog/StartChatDialog.qml b/imports/Spectral/Dialog/StartChatDialog.qml
index 273f7cd12..f572bccf5 100644
--- a/imports/Spectral/Dialog/StartChatDialog.qml
+++ b/imports/Spectral/Dialog/StartChatDialog.qml
@@ -13,8 +13,8 @@ Dialog {
     property var connection
 
     anchors.centerIn: parent
-    width: 480
-    height: window.height - 100
+    width: 360
+    height: Math.min(window.height - 100, 640)
 
     id: root