diff --git a/CHANGELOG.md b/CHANGELOG.md
index 957b18ca3..23affb966 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,7 +16,8 @@
 1. [](#bugfix)
     * Fixed fatal error when calling `{{ grav.undefined }}`
     * Fixed multiple issues when there are no pages in the site
-    *  PHP 7.4 fix for [#2750](https://github.com/getgrav/grav/issues/2750)
+    * PHP 7.4 fix for [#2750](https://github.com/getgrav/grav/issues/2750)
+    * Fixed `validation: strict` not working in blueprints [#1273](https://github.com/getgrav/grav/issues/1273)
 
 # v1.6.18
 ## 12/02/2019
diff --git a/system/src/Grav/Common/Data/BlueprintSchema.php b/system/src/Grav/Common/Data/BlueprintSchema.php
index 898450d28..f7c716780 100644
--- a/system/src/Grav/Common/Data/BlueprintSchema.php
+++ b/system/src/Grav/Common/Data/BlueprintSchema.php
@@ -53,7 +53,7 @@ class BlueprintSchema extends BlueprintSchemaBase implements ExportInterface
     public function validate(array $data)
     {
         try {
-            $messages = $this->validateArray($data, $this->nested);
+            $messages = $this->validateArray($data, $this->nested, $this->items['']['form'] ?? []);
 
         } catch (\RuntimeException $e) {
             throw (new ValidationException($e->getMessage(), $e->getCode(), $e))->setMessages();
@@ -129,14 +129,15 @@ class BlueprintSchema extends BlueprintSchemaBase implements ExportInterface
     /**
      * @param array $data
      * @param array $rules
+     * @param array $parent
      * @return array
      * @throws \RuntimeException
      */
-    protected function validateArray(array $data, array $rules)
+    protected function validateArray(array $data, array $rules, array $parent)
     {
         $messages = $this->checkRequired($data, $rules);
 
-        foreach ($data as $key => $field) {
+        foreach ($data as $key => $child) {
             $val = $rules[$key] ?? $rules['*'] ?? null;
             $rule = \is_string($val) ? $this->items[$val] : null;
 
@@ -147,11 +148,11 @@ class BlueprintSchema extends BlueprintSchemaBase implements ExportInterface
                     continue;
                 }
 
-                $messages += Validation::validate($field, $rule);
-            } elseif (\is_array($field) && \is_array($val)) {
+                $messages += Validation::validate($child, $rule);
+            } elseif (\is_array($child) && \is_array($val)) {
                 // Array has been defined in blueprints.
-                $messages += $this->validateArray($field, $val);
-            } elseif (isset($rules['validation']) && $rules['validation'] === 'strict') {
+                $messages += $this->validateArray($child, $val, $rule);
+            } elseif (isset($parent['validation']) && $parent['validation'] === 'strict') {
                 // Undefined/extra item.
                 throw new \RuntimeException(sprintf('%s is not defined in blueprints', $key));
             }
diff --git a/tests/unit/Grav/Common/Data/BlueprintTest.php b/tests/unit/Grav/Common/Data/BlueprintTest.php
new file mode 100644
index 000000000..b27b0a961
--- /dev/null
+++ b/tests/unit/Grav/Common/Data/BlueprintTest.php
@@ -0,0 +1,54 @@
+<?php
+
+use Grav\Common\Data\Blueprint;
+
+/**
+ * Class InstallCommandTest
+ */
+class BlueprintTest extends \Codeception\TestCase\Test
+{
+    /**
+     */
+    public function testValidateStrict()
+    {
+        $blueprint = $this->loadBlueprint('strict');
+
+        $blueprint->validate(['test' => 'string']);
+    }
+
+    /**
+     * @depends testValidateStrict
+     * @expectedException Grav\Common\Data\ValidationException
+     */
+    public function testValidateStrictRequired()
+    {
+        $blueprint = $this->loadBlueprint('strict');
+
+        $blueprint->validate([]);
+    }
+
+    /**
+     * @depends testValidateStrict
+     * @expectedException Grav\Common\Data\ValidationException
+     */
+    public function testValidateStrictExtra()
+    {
+        $blueprint = $this->loadBlueprint('strict');
+
+        $blueprint->validate(['test' => 'string', 'wrong' => 'field']);
+        die();
+    }
+
+    /**
+     * @param string $filename
+     * @return Blueprint
+     */
+    protected function loadBlueprint($filename)
+    {
+        $blueprint = new Blueprint('strict');
+        $blueprint->setContext(dirname(__DIR__, 3). '/data/blueprints');
+        $blueprint->load()->init();
+
+        return $blueprint;
+    }
+}
diff --git a/tests/unit/data/blueprints/strict.yaml b/tests/unit/data/blueprints/strict.yaml
new file mode 100644
index 000000000..6121753af
--- /dev/null
+++ b/tests/unit/data/blueprints/strict.yaml
@@ -0,0 +1,9 @@
+form:
+  validation: strict
+
+  fields:
+    test:
+      type: text
+      label: Test
+      validate:
+        required: true