diff --git a/src/plugins/Display/Display_Mono.h b/src/plugins/Display/Display_Mono.h
index ed9154af..42eea5f3 100644
--- a/src/plugins/Display/Display_Mono.h
+++ b/src/plugins/Display/Display_Mono.h
@@ -35,8 +35,8 @@ class DisplayMono {
 
       uint8_t mLoopCnt;
       uint32_t* mUtcTs;
-      uint8_t mLineXOffsets[5];
-      uint8_t mLineYOffsets[5];
+      uint8_t mLineXOffsets[5] = {};
+      uint8_t mLineYOffsets[5] = {};
 
       uint16_t mDispY;