diff --git a/test/run.sh b/test/run.sh
index bfde502b..f1983207 100644
--- a/test/run.sh
+++ b/test/run.sh
@@ -4,7 +4,7 @@ rm -f debug.log child.log
 
 ulimit -c unlimited
 ulimit -t 120
-sysctl -w kernel.core_pattern=core
+sudo sysctl -w kernel.core_pattern=core
 
 unset LANG
 unset LC_MESSAGES