diff --git a/Scribunto.php b/Scribunto.php
index 9b76f5f7..3c4f267a 100644
--- a/Scribunto.php
+++ b/Scribunto.php
@@ -112,6 +112,9 @@ $wgScribuntoEngineConf = array(
 		'memoryLimit' => 50 * 1024 * 1024,
 		'cpuLimit' => 7,
 
+		// The profiler sample period, or false to disable the profiler
+		'profilerPeriod' => 0.02,
+
 		// Set this to true to allow setfenv() and getfenv() in user code.
 		// Note that these functions have been removed in Lua 5.2. Scribunto 
 		// does not yet support Lua 5.2, but we expect support will be 
diff --git a/engines/LuaSandbox/Engine.php b/engines/LuaSandbox/Engine.php
index 932f965d..b6e77ce5 100644
--- a/engines/LuaSandbox/Engine.php
+++ b/engines/LuaSandbox/Engine.php
@@ -79,9 +79,15 @@ class Scribunto_LuaSandboxInterpreter extends Scribunto_LuaInterpreter {
 		$this->sandbox = new LuaSandbox;
 		$this->sandbox->setMemoryLimit( $options['memoryLimit'] );
 		$this->sandbox->setCPULimit( $options['cpuLimit'] );
-		if ( is_callable( array( $this->sandbox, 'enableProfiler' ) ) ) {
-			$this->profilerEnabled = true;
-			$this->sandbox->enableProfiler( 0.002 );
+		if ( is_callable( array( $this->sandbox, 'enableProfiler' ) ) ) 
+		{
+			if ( !isset( $options['profilerPeriod'] ) ) {
+				$options['profilerPeriod'] = 0.02;
+			}
+			if ( $options['profilerPeriod'] ) {
+				$this->profilerEnabled = true;
+				$this->sandbox->enableProfiler( $options['profilerPeriod'] );
+			}
 		}
 	}