diff --git a/conf/httpd_alias.conf b/conf/httpd_alias.conf
index 41d930f..c8c5b26 100644
--- a/conf/httpd_alias.conf
+++ b/conf/httpd_alias.conf
@@ -1,4 +1,4 @@
-<IfModule mod_proxy_wstunnel.so>
+<IfModule mod_proxy_wstunnel.c>
   ProxyPass /socket.io/1/websocket ws://localhost:8888/socket.io/1/websocket
   ProxyPassReverse /socket.io/1/websocket ws://localhost:8888/socket.io/1/websocket
 </IfModule>
@@ -8,7 +8,7 @@ ProxyPassReverse /socket.io/ http://localhost:8888/socket.io/
 # Etherpad example
 # If you install etherpad on the same box, listening on its default
 # port (9001) and want it to be accessible on /etherpad/
-# <IfModule mod_proxy_wstunnel.so>
+# <IfModule mod_proxy_wstunnel.c>
 #   ProxyPass /etherpad/socket.io/1/websocket ws://localhost:9001/socket.io/1/websocket
 #   ProxyPassReverse /etherpad/socket.io/1/websocket ws://localhost:9001/socket.io/1/websocket
 # </IfModule>
diff --git a/conf/httpd_vhost.conf b/conf/httpd_vhost.conf
index 181f483..ae2e22c 100644
--- a/conf/httpd_vhost.conf
+++ b/conf/httpd_vhost.conf
@@ -8,7 +8,7 @@
     ServerName vroom.example.com
     SSLEngine on
     DocumentRoot /opt/vroom/public
-    <IfModule mod_proxy_wstunnel.so>
+    <IfModule mod_proxy_wstunnel.c>
       ProxyPass /socket.io/1/websocket ws://localhost:8889/socket.io/1/websocket
       ProxyPassReverse /socket.io/1/websocket ws://localhost:8888/socket.io/1/websocket
     </IfModule>
@@ -18,7 +18,7 @@
     # Etherpad example
     # If you install etherpad on the same box, listening on its default
     # port (9001) and want it to be accessible on /etherpad/
-    # <IfModule mod_proxy_wstunnel.so>
+    # <IfModule mod_proxy_wstunnel.c>
     #   ProxyPass /etherpad/socket.io/1/websocket ws://localhost:9001/socket.io/1/websocket
     #   ProxyPassReverse /etherpad/socket.io/1/websocket ws://localhost:9001/socket.io/1/websocket
     # </IfModule>