diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 1b6127e9f7..448d9e373b 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -54,7 +54,7 @@
   #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix utils)
-  #:use-module (guix build utils)
+  #:use-module ((guix build utils) #:select (alist-replace))
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system ocaml)
@@ -64,6 +64,7 @@
   #:use-module (gnu packages algebra)
   #:use-module (gnu packages audio)
   #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages bison)
   #:use-module (gnu packages boost)
   #:use-module (gnu packages check)
@@ -117,7 +118,6 @@
   #:use-module (gnu packages tex)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages version-control)
-  #:use-module (gnu packages which)
   #:use-module (gnu packages wxwidgets)
   #:use-module (gnu packages xml)
   #:use-module (srfi srfi-1))