diff --git a/src/main/java/com/jquerybuilder/validation/ValidationGroup.java b/src/main/java/com/jquerybuilder/validation/ValidationGroup.java
index 98a1362..7d0e620 100644
--- a/src/main/java/com/jquerybuilder/validation/ValidationGroup.java
+++ b/src/main/java/com/jquerybuilder/validation/ValidationGroup.java
@@ -57,6 +57,8 @@ public boolean execute(Map data) {
     }
     for (ValidationGroup validationGroup : validationGroups) {
       boolean ruleResult = validationGroup.execute(data);
+      if (result == null) {
+        result = ruleResult;
       if (Condition.AND.equals(condition)) {
         result &= ruleResult;
       } else {