diff --git a/bundles/org.openhab.core.model.rule.runtime/src/org/openhab/core/model/rule/runtime/internal/DSLRuleProvider.java b/bundles/org.openhab.core.model.rule.runtime/src/org/openhab/core/model/rule/runtime/internal/DSLRuleProvider.java
index b8817d7b4..0d92c9307 100644
--- a/bundles/org.openhab.core.model.rule.runtime/src/org/openhab/core/model/rule/runtime/internal/DSLRuleProvider.java
+++ b/bundles/org.openhab.core.model.rule.runtime/src/org/openhab/core/model/rule/runtime/internal/DSLRuleProvider.java
@@ -129,7 +129,7 @@ public class DSLRuleProvider
 
     @Override
     public void modelChanged(String modelFileName, EventType type) {
-        String ruleModelName = modelFileName.substring(0, modelFileName.indexOf("."));
+        String ruleModelName = modelFileName.substring(0, modelFileName.lastIndexOf("."));
         switch (type) {
             case ADDED:
                 EObject model = modelRepository.getModel(modelFileName);