diff --git a/hw/max111x.c b/hw/max111x.c
index 2844665ba327b5b98d106e90e4f8d3a206ee363b..3adc3e4d2facc0232b590a802106851ecb0a95fb 100644
--- a/hw/max111x.c
+++ b/hw/max111x.c
@@ -15,7 +15,7 @@ typedef struct {
     uint8_t tb1, rb2, rb3;
     int cycle;
 
-    int input[8];
+    uint8_t input[8];
     int inputs, com;
 } MAX111xState;