diff --git a/easyrules-core/src/main/java/io/github/benas/easyrules/core/DefaultRulesEngine.java b/easyrules-core/src/main/java/io/github/benas/easyrules/core/DefaultRulesEngine.java
index d894bf2..5dc33b4 100644
--- a/easyrules-core/src/main/java/io/github/benas/easyrules/core/DefaultRulesEngine.java
+++ b/easyrules-core/src/main/java/io/github/benas/easyrules/core/DefaultRulesEngine.java
@@ -112,17 +112,17 @@ public class DefaultRulesEngine implements RulesEngine {
         for (Rule rule : rules) {
 
             if (rule.getPriority() > rulePriorityThreshold) {
-                LOGGER.log(Level.INFO, "Rules priority threshold {} exceeded at rule {} (priority={}), next applicable rules will be skipped.",
+                LOGGER.log(Level.INFO, "Rules priority threshold {0} exceeded at rule {1} (priority={2}), next applicable rules will be skipped.",
                         new Object[] {rulePriorityThreshold, rule.getName(), rule.getPriority()});
                 break;
             }
 
             //apply rule
             if (rule.evaluateConditions()) {
-                LOGGER.log(Level.INFO, "Rule '{}' triggered.", new Object[]{rule.getName()});
+                LOGGER.log(Level.INFO, "Rule {0} triggered.", new Object[]{rule.getName()});
                 try {
                     rule.performActions();
-                    LOGGER.log(Level.INFO, "Rule '" + rule.getName() + "' performed successfully.", new Object[]{rule.getName()});
+                    LOGGER.log(Level.INFO, "Rule {0} performed successfully.", new Object[]{rule.getName()});
 
                     if (skipOnFirstAppliedRule) {
                         LOGGER.info("Next rules will be skipped according to parameter skipOnFirstAppliedRule.");
@@ -162,7 +162,7 @@ public class DefaultRulesEngine implements RulesEngine {
             name = new ObjectName("io.github.benas.easyrules.jmx:type=" + JmxManagedRule.class.getSimpleName() + ",name=" + rule.getName());
             if (!mBeanServer.isRegistered(name)) {
                 mBeanServer.registerMBean(rule, name);
-                LOGGER.log(Level.INFO, "JMX MBean registered successfully as: {} for rule: {}", new Object[]{name.getCanonicalName(), rule.getName()});
+                LOGGER.log(Level.INFO, "JMX MBean registered successfully as: {0} for rule: {1}", new Object[]{name.getCanonicalName(), rule.getName()});
             }
         } catch (Exception e) {
             LOGGER.log(Level.SEVERE, "Unable to register JMX MBean for rule: " + rule.getName(), e);