diff --git a/academic/geda-gaf/geda-gaf.info b/academic/geda-gaf/geda-gaf.info
index 3664fa7fb5..1362c53982 100644
--- a/academic/geda-gaf/geda-gaf.info
+++ b/academic/geda-gaf/geda-gaf.info
@@ -5,6 +5,6 @@ DOWNLOAD="http://ftp.geda-project.org/geda-gaf/stable/v1.8/1.8.2/geda-gaf-1.8.2.
 MD5SUM="fa8a807615decf47027e22a217dd0ded"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES=""
+REQUIRES="guile1.8"
 MAINTAINER="Stephen Van Berg"
 EMAIL="stephen_van_berg@earlicker.com"