diff --git a/src/JsonSchema/Constraints/TypeCheck/StrictTypeCheck.php b/src/JsonSchema/Constraints/TypeCheck/StrictTypeCheck.php
index a6303a7a..59fa12be 100644
--- a/src/JsonSchema/Constraints/TypeCheck/StrictTypeCheck.php
+++ b/src/JsonSchema/Constraints/TypeCheck/StrictTypeCheck.php
@@ -31,6 +31,10 @@ public static function propertyExists($value, $property)
 
     public static function propertyCount($value)
     {
+        if (!is_object($value)) {
+            return 0;
+        }
+
         return count(get_object_vars($value));
     }
 }
diff --git a/tests/Constraints/MinMaxPropertiesTest.php b/tests/Constraints/MinMaxPropertiesTest.php
index 2063122c..90774b91 100644
--- a/tests/Constraints/MinMaxPropertiesTest.php
+++ b/tests/Constraints/MinMaxPropertiesTest.php
@@ -123,6 +123,16 @@ public function getInvalidTests()
                   }
                 }'
             ),
+            array(
+                '{
+                  "value": []
+                }',
+                '{
+                  "properties": {
+                    "value": {"minProperties": 1,"maxProperties": 2}
+                  }
+                }'
+            ),
         );
     }
 }