diff --git a/src/message.c b/src/message.c
index cb1a773..0119145 100644
--- a/src/message.c
+++ b/src/message.c
@@ -4722,9 +4722,13 @@
 			    // signed
 			    switch (length_modifier)
 			    {
-			    case '\0':
+			    case '\0': str_arg_l += sprintf(
+						 tmp + str_arg_l, f,
+						 int_arg);
+				       break;
 			    case 'h': str_arg_l += sprintf(
-						 tmp + str_arg_l, f, int_arg);
+						 tmp + str_arg_l, f,
+						 (short)int_arg);
 				      break;
 			    case 'l': str_arg_l += sprintf(
 						tmp + str_arg_l, f, long_arg);
@@ -4739,9 +4743,13 @@
 			    // unsigned
 			    switch (length_modifier)
 			    {
-			    case '\0':
+			    case '\0': str_arg_l += sprintf(
+						tmp + str_arg_l, f,
+						uint_arg);
+				       break;
 			    case 'h': str_arg_l += sprintf(
-						tmp + str_arg_l, f, uint_arg);
+						tmp + str_arg_l, f,
+						(unsigned short)uint_arg);
 				      break;
 			    case 'l': str_arg_l += sprintf(
 					       tmp + str_arg_l, f, ulong_arg);