diff --git a/src/kits/app/Message.cpp b/src/kits/app/Message.cpp
index b7376cb7b7..40df985758 100644
--- a/src/kits/app/Message.cpp
+++ b/src/kits/app/Message.cpp
@@ -604,12 +604,12 @@ BMessage::_PrintToStream(const char* indent) const
 					break;
 
 				case B_INT8_TYPE:
-					print_type3<int8>("int8(0x%hx or %d or '%.1s')\n",
+					print_type3<int8>("int8(0x%hx or %d or '%c')\n",
 						pointer);
 					break;
 
 				case B_UINT8_TYPE:
-					print_type3<uint8>("uint8(0x%hx or %u or '%.1s')\n",
+					print_type3<uint8>("uint8(0x%hx or %u or '%c')\n",
 						pointer);
 					break;