--- rpl/src/instructions_s10.c	2013/03/21 14:39:10	1.71
+++ rpl/src/instructions_s10.c	2013/03/21 16:31:59	1.72
@@ -1276,7 +1276,8 @@ instruction_smphrtrydecr(struct_processu
 				return;
 			}
 
-			horodatage.tv_sec += (*((integer8 *) (*s_objet_argument_1).objet));
+			horodatage.tv_sec += (time_t) (*((integer8 *)
+					(*s_objet_argument_1).objet));
 		}
 		else
 		{