diff --git a/inc/adr68k.h b/inc/adr68k.h
index 0e05934..9799780 100644
--- a/inc/adr68k.h
+++ b/inc/adr68k.h
@@ -77,7 +77,7 @@ static inline DLword *NativeAligned2FromStackOffset(DLword StackOffset)
 static inline LispPTR *NativeAligned4FromStackOffset(DLword StackOffset)
 {
   if (StackOffset & 1) {
-    printf("Misaligned StackOffset in NativeAligned4FromStackOffset 0x%tx\n", StackOffset);
+    printf("Misaligned StackOffset in NativeAligned4FromStackOffset 0x%hx\n", StackOffset);
   }
   return (void *)(Stackspace + StackOffset);
 }