diff --git a/test-nodejs-pipeline.groovy b/test-nodejs-pipeline.groovy
index 7e31d33..35d8317 100644
--- a/test-nodejs-pipeline.groovy
+++ b/test-nodejs-pipeline.groovy
@@ -27,7 +27,7 @@
         stage ('Execute commands') {
             assert containerID != null
             def cmds = COMMANDS.tokenize('\n')
-            for (int i = 0; i < cmds.size(), i++) {
+            for (int i = 0; i < cmds.size(); i++) {
                def cmd = cmds[i]
                def output = sh(
                    script: "docker exec ${containerID} ${cmd}",