diff --git a/Formula/guile-config.rb b/Formula/guile-config.rb
index 3c5c6c8..3f321b8 100644
--- a/Formula/guile-config.rb
+++ b/Formula/guile-config.rb
@@ -9,7 +9,7 @@ class GuileConfig < Formula
   depends_on "automake" => :build
   depends_on "pkg-config" => :build
   depends_on "texinfo" => :build
-  depends_on "guile-next"
+  depends_on "msg/apps/guile-next"
 
   def install
     ENV["GUILE_AUTO_COMPILE"] = "0"
diff --git a/Formula/guile-hall.rb b/Formula/guile-hall.rb
index 66e7a53..d6dea76 100644
--- a/Formula/guile-hall.rb
+++ b/Formula/guile-hall.rb
@@ -8,9 +8,9 @@ class GuileHall < Formula
   depends_on "automake" => :build
   depends_on "pkg-config" => :build
   depends_on "texinfo" => :build
-  depends_on "guile-next"
+  depends_on "msg/apps/guile-next"
   depends_on "guile-lib"
-  depends_on "guile-config"
+  depends_on "msg/apps/guile-config"
 
   def install
     ENV["GUILE_AUTO_COMPILE"] = "0"