diff --git a/srfi/impl.scm b/srfi/233.scm
similarity index 100%
rename from srfi/impl.scm
rename to srfi/233.scm
diff --git a/srfi/233.sld b/srfi/233.sld
index 4d241a6..d8cb912 100644
--- a/srfi/233.sld
+++ b/srfi/233.sld
@@ -33,4 +33,4 @@
   (export
    make-ini-file-generator
    make-ini-file-accumulator)
-  (include "impl.scm"))
+  (include "233.scm"))