1 files changed, 1 insertions, 0 deletions

diff --git a/test/RP.cc b/test/RP.cc
index 35ee71d..f015723 100644
--- a/test/RP.cc
+++ b/test/RP.cc
@@ -2,4 +2,5 @@
 #include <iostream>
 #include <cassert>
+#include <cstdlib>
 #include <stdexcept>
 #include <string>