diff --git a/run.sh b/run.sh
index 46bd5d0..78fa343 100755
--- a/run.sh
+++ b/run.sh
@@ -29,7 +29,7 @@ if [ 1 -eq $(echo "${OCP_AUTH_PROXY_MEMORY_LIMIT:-}" | grep -Ec $regex) ] ; then
         num=$DEFAULT_MIN
     fi
 
-    export NODE_OPTIONS="--max-old-space-size=$((num / ${BYTES_PER_MEG}))"
+    export NODE_OPTIONS="--max_old_space_size=$((num / ${BYTES_PER_MEG}))"
 
 else
     echo "Unable to process the OCP_AUTH_PROXY_MEMORY_LIMIT: '${OCP_AUTH_PROXY_MEMORY_LIMIT}'."