diff --git a/Puc/v4p1/Vcs/PluginUpdateChecker.php b/Puc/v4p1/Vcs/PluginUpdateChecker.php
index 25a496e..9068f82 100644
--- a/Puc/v4p1/Vcs/PluginUpdateChecker.php
+++ b/Puc/v4p1/Vcs/PluginUpdateChecker.php
@@ -32,7 +32,9 @@ if ( !class_exists('Puc_v4p1_Vcs_PluginUpdateChecker') ):
 		public function requestInfo($unusedParameter = null) {
 			//We have to make several remote API requests to gather all the necessary info
 			//which can take a while on slow networks.
-			set_time_limit(60);
+			if ( function_exists('set_time_limit') ) {
+				@set_time_limit(60);
+			}
 
 			$api = $this->api;