diff --git a/contrib/qprofdiff/main.cpp b/contrib/qprofdiff/main.cpp
index d6a403cf2..661e976ec 100644
--- a/contrib/qprofdiff/main.cpp
+++ b/contrib/qprofdiff/main.cpp
@@ -16,6 +16,7 @@ Author:
 Revision History:
 --*/
 #include<errno.h>
+#include<limits.h>
 
 #include<string>
 #include<iostream>
@@ -278,4 +279,4 @@ int main(int argc, char ** argv) {
     diff(data1, data2);
 
     return 0;
-}
\ No newline at end of file
+}