diff --git a/CHANGELOG.md b/CHANGELOG.md
index 634f9c9..0be1625 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,13 +4,14 @@
 
 There are next changes:
 
+- fix `is_callable` method which fails on malformed arrays
+
 ## v2.0.4
 
 There are next changes:
 
 - make more unique rewritten files paths depends on php internals
 
-
 ## v2.0.3
 
 There are next changes:
diff --git a/src/Badoo/SoftMocks.php b/src/Badoo/SoftMocks.php
index 05976af..73e37f7 100644
--- a/src/Badoo/SoftMocks.php
+++ b/src/Badoo/SoftMocks.php
@@ -1293,6 +1293,10 @@ public static function isCallable($callable)
         }
 
         if (is_array($callable) && sizeof($callable) === 2) {
+            if (!isset($callable[0]) || !isset($callable[1])) {
+                return is_callable($callable);
+            }
+
             if (is_object($callable[0])) {
                 $class = get_class($callable[0]);
             } else {
diff --git a/tests/unit/Badoo/SoftMocksTest.php b/tests/unit/Badoo/SoftMocksTest.php
index 97341dc..b8710f3 100644
--- a/tests/unit/Badoo/SoftMocksTest.php
+++ b/tests/unit/Badoo/SoftMocksTest.php
@@ -2777,16 +2777,35 @@ public function testGetDeclaringTrait()
         $getDeclaringTrait->setAccessible(true);
 
         // No traits.
-        $this->assertNull($getDeclaringTrait->invoke(null, ClassWithoutTraits::class, 'do_things'));
+        $this->assertNull($getDeclaringTrait->invoke(null, ClassWithoutTraits::class, 'doThings'));
 
         // Direct trait usage.
         /** @var \ReflectionClass $result */
-        $result = $getDeclaringTrait->invoke(null, ClassWithTraitB::class, 'do_things');
+        $result = $getDeclaringTrait->invoke(null, ClassWithTraitB::class, 'doThings');
         $this->assertSame(TraitB::class, $result->getName());
 
         // Trait in trait usage.
         /** @var \ReflectionClass $result */
-        $result = $getDeclaringTrait->invoke(null, ClassWithTraitA::class, 'do_things');
+        $result = $getDeclaringTrait->invoke(null, ClassWithTraitA::class, 'doThings');
         $this->assertSame(TraitB::class, $result->getName());
     }
+
+    public function providerClassWithIsCallable()
+    {
+        return [
+            'numeric keys' => [[ClassWithIsCallable::class, 'doThings'], true],
+            'assoc keys' => [['x' => ClassWithIsCallable::class, 'y' => 'doThings'], false],
+        ];
+    }
+
+    /**
+     * @dataProvider providerClassWithIsCallable
+     *
+     * @param callable $callable
+     * @param bool $expected_result
+     */
+    public function testClassWithIsCallable($callable, $expected_result)
+    {
+        $this->assertSame($expected_result, ClassWithIsCallable::check($callable));
+    }
 }
diff --git a/tests/unit/Badoo/SoftMocksTestClasses.php b/tests/unit/Badoo/SoftMocksTestClasses.php
index dc381b4..a92fd6e 100644
--- a/tests/unit/Badoo/SoftMocksTestClasses.php
+++ b/tests/unit/Badoo/SoftMocksTestClasses.php
@@ -273,10 +273,7 @@ trait TraitA
 
 trait TraitB
 {
-    public function do_things()
-    {
-        return;
-    }
+    public function doThings() {}
 }
 
 class ClassWithTraitA
@@ -291,8 +288,18 @@ class ClassWithTraitB
 
 class ClassWithoutTraits
 {
-    public function do_things()
+    public function doThings() {}
+}
+
+class ClassWithIsCallable
+{
+    public static function doThings() {}
+
+    public static function check($callable)
     {
-        return;
+        if (is_callable($callable)) {
+            return true;
+        }
+        return false;
     }
-}
\ No newline at end of file
+}