diff --git a/.htaccess b/.htaccess
index 7b0da46..81ef22c 100644
--- a/.htaccess
+++ b/.htaccess
@@ -18,7 +18,9 @@ ErrorDocument 500 /assets/error-500.html
 </IfModule>
 
 <IfModule mod_rewrite.c>
+	SetEnv HTTP_MOD_REWRITE On
 	RewriteEngine On
+
 	RewriteCond %{REQUEST_URI} ^(.*)$
 	RewriteCond %{REQUEST_FILENAME} !-f
 	RewriteRule .* sapphire/main.php?url=%1&%{QUERY_STRING} [L]
diff --git a/install.php b/install.php
index 02876dc..6c459c5 100644
--- a/install.php
+++ b/install.php
@@ -645,6 +645,8 @@ class InstallRequirements {
 	function testApacheRewriteExists($moduleName = 'mod_rewrite') {
 		if(function_exists('apache_get_modules') && in_array($moduleName, apache_get_modules())) {
 			return true;
+		} elseif(isset($_SERVER['HTTP_MOD_REWRITE']) && $_SERVER['HTTP_MOD_REWRITE'] == 'On') {
+			return true;
 		} else {
 			return false;
 		}