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
@@ -3,2 +3,3 @@
 #include <cassert>
+#include <cstdlib>
 #include <stdexcept>