diff --git a/ASR3.1/TP06 Redirection tubes / pipe-ex.c b/ASR3.1/TP06 Redirection tubes / pipe-ex.c
index 55ebcb0..dc1d3c9 100644
--- a/ASR3.1/TP06 Redirection tubes / pipe-ex.c	
+++ b/ASR3.1/TP06 Redirection tubes / pipe-ex.c	
@@ -18,7 +18,7 @@ int main(int argc, char const *argv[]){
 		/*pf1f1*/
 		if (fork() == 0) {
 
-			read(p[0], &pid, 1 );
+			read(p[0], &pid, sizeof(pid_t) );
 
 			while (1) {
 				sleep(3);
@@ -36,7 +36,7 @@ int main(int argc, char const *argv[]){
 
 		//printf("while ok\n");
 
-		write (p[1], &pid, 1);
+		write (p[1], &pid, sizeof(pid_t));
 	
 		close (p[1]);