diff --git a/gnu/packages/perl6.scm b/gnu/packages/perl6.scm
index 408d7e8e97..cfc6d2d504 100644
--- a/gnu/packages/perl6.scm
+++ b/gnu/packages/perl6.scm
@@ -305,27 +305,26 @@ and runs on top of several virtual machines.")
     (license license:artistic2.0)))
 
 (define-public perl6-grammar-debugger
-  ;; Last commit was September 2017
+  ;; Last commit was September 2017.
   (let ((commit "0375008027c8caa216bd869476ce59ae09b2a702")
         (revision "1"))
     (package
       (name "perl6-grammar-debugger")
       (version (git-version "1.0.1" revision commit))
       (source
-        (origin
-          (method git-fetch)
-          (uri (git-reference
-                 (url "https://github.com/jnthn/grammar-debugger")
-                 (commit commit)))
-          (file-name (git-file-name name version))
-          (sha256
-           (base32
-            "0y826z3m276n7ia810hgcb3div67nxmx125m2fzlc16994zd5vm5"))))
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/jnthn/grammar-debugger")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "0y826z3m276n7ia810hgcb3div67nxmx125m2fzlc16994zd5vm5"))))
       (build-system rakudo-build-system)
       (propagated-inputs
        (list perl6-terminal-ansicolor))
       (home-page "https://github.com/jnthn/grammar-debugger")
-      (synopsis "Simple tracing and debugging support for Perl 6 grammars")
+      (synopsis "Simple tracing and debugging support for Raku grammars")
       (description "This module provides a simple debugger for grammars.  Just
 @code{use} it: use @code{Grammar::Debugger;} and any grammar in the lexical
 scope of the use statement will automatically have debugging enabled. The