diff --git a/testsuites/psxtests/psxfile01/test_cat.c b/testsuites/psxtests/psxfile01/test_cat.c
index c2b3c4bb25..f461d21358 100644
--- a/testsuites/psxtests/psxfile01/test_cat.c
+++ b/testsuites/psxtests/psxfile01/test_cat.c
@@ -50,7 +50,7 @@
 #include <tmacros.h>
 
 /* forward declarations to avoid warnings */
-void test_cat(char *file, int offset_arg, int length);
+void test_cat(char *file, int offset_arg, size_t length);
 
 /*
  *  test_cat routine
@@ -59,15 +59,15 @@ void test_cat(char *file, int offset_arg, int length);
 unsigned char test_cat_buffer[ 1024 ];
 
 void test_cat(
-  char *file,
-  int   offset_arg,
-  int   length
+  char   *file,
+  int     offset_arg,
+  size_t  length
 )
 {
   int            fd;
   int            status;
   int            is_printable = 0;
-  int            my_length;
+  size_t         my_length;
   int            i;
   unsigned char  c;
   int            count = 0;
diff --git a/testsuites/psxtests/psxmsgq03/init.c b/testsuites/psxtests/psxmsgq03/init.c
index f79d4eb604..28fadf731b 100644
--- a/testsuites/psxtests/psxmsgq03/init.c
+++ b/testsuites/psxtests/psxmsgq03/init.c
@@ -83,10 +83,10 @@ void *POSIX_Init(
 
   puts( "Init - Open message queue" );
   Queue = mq_open( "Qsend", O_CREAT | O_RDWR, 0x777, &attr );
-  if ( Queue == (-1) ) {
+  if ( Queue == (mqd_t)(-1) ) {
     perror( "mq_open failed" );
   }
-  rtems_test_assert( Queue != (-1) );
+  rtems_test_assert( Queue != (mqd_t)(-1) );
 
   puts( "Init - send to message queue" );
   status = mq_send( Queue, (const char *)&status, sizeof(int), 1 );