diff --git a/node.ks b/node.ks
index d5531c9..f051c5f 100755
--- a/node.ks
+++ b/node.ks
@@ -32,7 +32,7 @@ function execute_node {
     
     print "Approaching".
     lock STEERING to node:DELTAV.
-    wait until node:ETA <= CEIL(burn_duration/2).  // CEIL instead of ROUND, since we'd rather start the burn too soon to have time for perfecting the burn
+    wait until node:ETA <= CEILING(burn_duration/2).  // CEILING instead of ROUND, since we'd rather start the burn too soon to have time for perfecting the burn
     
     print "Burn!".
     lock THROTTLE to 1.0.