diff --git a/testsuites/ChangeLog b/testsuites/ChangeLog
index db6376125c..2a5fc3c455 100644
--- a/testsuites/ChangeLog
+++ b/testsuites/ChangeLog
@@ -1,3 +1,8 @@
+2011-02-22	Ralf Corsépius <ralf.corsepius@rtems.org>
+
+	* support/src/tmtests_support.c: 
+	loop_overhead and end_time are uint32_t's.
+
 2011-02-22	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* support/src/spin.c, support/src/test_support.c,
diff --git a/testsuites/support/src/tmtests_support.c b/testsuites/support/src/tmtests_support.c
index aa9da5a7cb..c3208427ec 100644
--- a/testsuites/support/src/tmtests_support.c
+++ b/testsuites/support/src/tmtests_support.c
@@ -34,8 +34,8 @@ void rtems_time_test_measure_operation(
 )
 {
   int  i;
-  long loop_overhead;
-  int  end_time;
+  uint32_t loop_overhead;
+  uint32_t end_time;
 
   benchmark_timer_initialize();
     for (i=0 ; i<iterations ; i++ ) {