diff --git a/README.md b/README.md
index 0c11746..0732a8e 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ This is exactly what Easy Rules does, it provides the `Rule` abstraction to crea
 #### Either in a declarative way using annotations:
 
 ```java
-@Rule(name = "weather rule", description = "if it rains then take an umbrella" )
+@Rule(name = "weather rule", description = "if it rains then take an umbrella")
 public class WeatherRule {
 
     @Condition
diff --git a/easy-rules-core/src/main/java/org/jeasy/rules/api/Rules.java b/easy-rules-core/src/main/java/org/jeasy/rules/api/Rules.java
index 6761c3c..7623793 100644
--- a/easy-rules-core/src/main/java/org/jeasy/rules/api/Rules.java
+++ b/easy-rules-core/src/main/java/org/jeasy/rules/api/Rules.java
@@ -55,7 +55,7 @@ public class Rules implements Iterable<Rule> {
      *
      * @param rules to register
      */
-    public Rules(Rule... rules ) {
+    public Rules(Rule... rules) {
         Collections.addAll(this.rules, rules);
     }
 
@@ -64,7 +64,7 @@ public class Rules implements Iterable<Rule> {
      *
      * @param rules to register
      */
-    public Rules(Object... rules ) {
+    public Rules(Object... rules) {
         for (Object rule : rules) {
             this.register(rule);
         }
diff --git a/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/weather/WeatherRule.java b/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/weather/WeatherRule.java
index 1d5c2ab..a2931bd 100644
--- a/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/weather/WeatherRule.java
+++ b/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/weather/WeatherRule.java
@@ -28,7 +28,7 @@ import org.jeasy.rules.annotation.Condition;
 import org.jeasy.rules.annotation.Fact;
 import org.jeasy.rules.annotation.Rule;
 
-@Rule(name = "weather rule", description = "if it rains then take an umbrella" )
+@Rule(name = "weather rule", description = "if it rains then take an umbrella")
 public class WeatherRule {
 
     @Condition