diff --git a/games/o2em/o2em.info b/games/o2em/o2em.info
index 436fada1de..b666a22e2e 100644
--- a/games/o2em/o2em.info
+++ b/games/o2em/o2em.info
@@ -7,6 +7,6 @@ MD5SUM="be96af886370df337fe8584827717627 \
         9910ecb7d87fcd5696dd4dd00c792e33"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES="allegro"
+REQUIRES="allegro4"
 MAINTAINER="B. Watson"
 EMAIL="yalhcru@gmail.com"