diff --git a/sonoff/xdsp_02_ssd1306.ino b/sonoff/xdsp_02_ssd1306.ino
index aa5f56f85..d47407026 100644
--- a/sonoff/xdsp_02_ssd1306.ino
+++ b/sonoff/xdsp_02_ssd1306.ino
@@ -86,10 +86,10 @@ void Ssd1306InitDriver(void)
   }
 
   if (XDSP_02 == Settings.display_model) {
-    if ((Settings.display_width != 96) || (Settings.display_width != 128)) {
+    if ((Settings.display_width != 96) && (Settings.display_width != 128)) {
       Settings.display_width = 128;
     }
-    if ((Settings.display_height != 16) || (Settings.display_height != 32) || (Settings.display_height != 64)) {
+    if ((Settings.display_height != 16) && (Settings.display_height != 32) && (Settings.display_height != 64)) {
       Settings.display_height = 64;
     }
     int8_t reset_pin = -1;