diff --git a/s48/args-fold/AUTHORS b/s48/args-fold/AUTHORS
index aaa0f16..b0a8eda 100644
--- a/s48/args-fold/AUTHORS
+++ b/s48/args-fold/AUTHORS
@@ -1 +1 @@
-Anthony Carrico
+Copyright (c) 2004 Anthony Carrico
diff --git a/s48/args-fold/NEWS b/s48/args-fold/NEWS
new file mode 100644
index 0000000..eedaa26
--- /dev/null
+++ b/s48/args-fold/NEWS
@@ -0,0 +1,2 @@
+version 0.4
+* New package system.
diff --git a/s48/args-fold/interfaces.scm b/s48/args-fold/load.scm
similarity index 62%
rename from s48/args-fold/interfaces.scm
rename to s48/args-fold/load.scm
index 988e4eb..5799e71 100644
--- a/s48/args-fold/interfaces.scm
+++ b/s48/args-fold/load.scm
@@ -7,3 +7,8 @@
    option-optional-arg?
    option-processor
    args-fold))
+
+(define-structure srfi-37
+  srfi-37-interface
+  (open scheme srfi-9 srfi-11)
+  (files args-fold))
diff --git a/s48/args-fold/packages.scm b/s48/args-fold/packages.scm
deleted file mode 100644
index 0bf8418..0000000
--- a/s48/args-fold/packages.scm
+++ /dev/null
@@ -1,4 +0,0 @@
-(define-structure srfi-37
-  srfi-37-interface
-  (open scheme srfi-9 srfi-11)
-  (files args-fold))
diff --git a/s48/args-fold/pkg-def.scm b/s48/args-fold/pkg-def.scm
new file mode 100644
index 0000000..cd01650
--- /dev/null
+++ b/s48/args-fold/pkg-def.scm
@@ -0,0 +1,7 @@
+(define-package "srfi-37"
+  (0 6)
+  ()
+  (install-file "load.scm" 'base)
+  (install-file "README" 'doc)
+  (install-string (COPYING) "COPYING" 'doc)
+  (install-file "args-fold.scm" 'scheme))