diff --git a/webapp/sources/rudder/rudder-core/src/main/scala/com/normation/rudder/ncf/TechniqueWriter.scala b/webapp/sources/rudder/rudder-core/src/main/scala/com/normation/rudder/ncf/TechniqueWriter.scala
index c7daa2847dd..dd556ce519c 100644
--- a/webapp/sources/rudder/rudder-core/src/main/scala/com/normation/rudder/ncf/TechniqueWriter.scala
+++ b/webapp/sources/rudder/rudder-core/src/main/scala/com/normation/rudder/ncf/TechniqueWriter.scala
@@ -344,7 +344,7 @@ class ClassicTechniqueWriter(basePath : String) extends AgentSpecificTechniqueWr
          |bundle agent ${technique.bundleName.value}${bundleParams}
          |{
          |  vars:
-         |    "resources_dir" string => "$${this.promise_dir}/resources";
+         |    "resources_dir" string => "$${this.promise_dirname}/resources";
          |  methods:
          |${methodCalls}
          |}""".stripMargin('|')