diff --git a/src/Loop.php b/src/Loop.php
index 8cc9dd8f..a247579e 100644
--- a/src/Loop.php
+++ b/src/Loop.php
@@ -41,6 +41,12 @@ public static function get()
         });
 
         register_shutdown_function(function () use ($loop, &$hasRun) {
+            // Don't run if we're coming from a fatal error (uncaught exception).
+            $error = error_get_last();
+            if ((isset($error['type']) ? $error['type'] : 0) & (E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR | E_RECOVERABLE_ERROR)) {
+                return;
+            }
+
             if (!$hasRun) {
                 $loop->run();
             }
diff --git a/tests/BinTest.php b/tests/BinTest.php
index 99c05d91..55b3aaca 100644
--- a/tests/BinTest.php
+++ b/tests/BinTest.php
@@ -36,4 +36,22 @@ public function testExecuteExampleWithExplicitLoopRunAndStopRunsLoopAndExecutesT
 
         $this->assertEquals('abc', $output);
     }
+
+    public function testExecuteExampleWithUncaughtExceptionShouldNotRunLoop()
+    {
+        $time = microtime(true);
+        exec(escapeshellarg(PHP_BINARY) . ' 11-uncaught.php 2>/dev/null');
+        $time = microtime(true) - $time;
+
+        $this->assertLessThan(1.0, $time);
+    }
+
+    public function testExecuteExampleWithUndefinedVariableShouldNotRunLoop()
+    {
+        $time = microtime(true);
+        exec(escapeshellarg(PHP_BINARY) . ' 12-undefined.php 2>/dev/null');
+        $time = microtime(true) - $time;
+
+        $this->assertLessThan(1.0, $time);
+    }
 }
diff --git a/tests/bin/11-uncaught.php b/tests/bin/11-uncaught.php
new file mode 100644
index 00000000..0655698b
--- /dev/null
+++ b/tests/bin/11-uncaught.php
@@ -0,0 +1,11 @@
+<?php
+
+use React\EventLoop\Loop;
+
+require __DIR__ . '/../../vendor/autoload.php';
+
+Loop::addTimer(10.0, function () {
+    echo 'never';
+});
+
+throw new RuntimeException();
diff --git a/tests/bin/12-undefined.php b/tests/bin/12-undefined.php
new file mode 100644
index 00000000..66d0d726
--- /dev/null
+++ b/tests/bin/12-undefined.php
@@ -0,0 +1,11 @@
+<?php
+
+use React\EventLoop\Loop;
+
+require __DIR__ . '/../../vendor/autoload.php';
+
+Loop::get()->addTimer(10.0, function () {
+    echo 'never';
+});
+
+$undefined->foo('bar');