diff --git a/UnixBench/src/arith.c b/UnixBench/src/arith.c
index 05fab70..55c72fd 100644
--- a/UnixBench/src/arith.c
+++ b/UnixBench/src/arith.c
@@ -40,7 +40,7 @@ volatile unsigned long iter;
 /* this function is called when the alarm expires */
 void report()
 {
-	fprintf(stderr,"COUNT|%ld|1|lps\n", iter);
+	fprintf(stderr,"COUNT|%lu|1|lps\n", iter);
 	exit(0);
 }
 
diff --git a/UnixBench/src/dhry_1.c b/UnixBench/src/dhry_1.c
index 1fa1e26..9cf413b 100644
--- a/UnixBench/src/dhry_1.c
+++ b/UnixBench/src/dhry_1.c
@@ -44,7 +44,7 @@ volatile unsigned long Run_Index;
 
 void report()
 {
-	fprintf(stderr,"COUNT|%ld|1|lps\n", Run_Index);
+	fprintf(stderr,"COUNT|%lu|1|lps\n", Run_Index);
 	exit(0);
 }
 
diff --git a/UnixBench/src/hanoi.c b/UnixBench/src/hanoi.c
index eaf523d..c20d348 100644
--- a/UnixBench/src/hanoi.c
+++ b/UnixBench/src/hanoi.c
@@ -32,7 +32,7 @@ long cnt;
 
 void report()
 {
-	fprintf(stderr,"COUNT|%ld|1|lps\n", iter);
+	fprintf(stderr,"COUNT|%lu|1|lps\n", iter);
 	exit(0);
 }
 
diff --git a/UnixBench/src/pipe.c b/UnixBench/src/pipe.c
index 23a5cbf..ac276cd 100644
--- a/UnixBench/src/pipe.c
+++ b/UnixBench/src/pipe.c
@@ -31,7 +31,7 @@ unsigned long iter;
 
 void report()
 {
-	fprintf(stderr,"COUNT|%ld|1|lps\n", iter);
+	fprintf(stderr,"COUNT|%lu|1|lps\n", iter);
 	exit(0);
 }
 
diff --git a/UnixBench/src/syscall.c b/UnixBench/src/syscall.c
index 97a22e8..ca6071c 100644
--- a/UnixBench/src/syscall.c
+++ b/UnixBench/src/syscall.c
@@ -36,7 +36,7 @@ unsigned long iter;
 
 void report()
 {
-	fprintf(stderr,"COUNT|%ld|1|lps\n", iter);
+	fprintf(stderr,"COUNT|%lu|1|lps\n", iter);
 	exit(0);
 }