diff --git a/mod/admin.php b/mod/admin.php
index 4539e4192b..f1f895dbcc 100644
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -87,6 +87,11 @@ function admin_content(&$a) {
 	if(x($_SESSION,'submanage') && intval($_SESSION['submanage']))
 		return "";
 
+	if (function_exists("apc_delete")) {
+		$toDelete = new APCIterator('user', APC_ITER_VALUE);
+		apc_delete($toDelete);
+	}
+
 	/**
 	 * Side bar links
 	 */
diff --git a/mod/settings.php b/mod/settings.php
index f9d5b712ca..12f7910cce 100644
--- a/mod/settings.php
+++ b/mod/settings.php
@@ -16,6 +16,11 @@ function get_theme_config_file($theme){
 
 function settings_init(&$a) {
 
+	if (function_exists("apc_delete")) {
+		$toDelete = new APCIterator('user', APC_ITER_VALUE);
+		apc_delete($toDelete);
+	}
+
 	// These lines provide the javascript needed by the acl selector
 
 	$tpl = get_markup_template("settings-head.tpl");