diff --git a/gnu/packages/diffoscope.scm b/gnu/packages/diffoscope.scm
index f9a7c66646..71c0039dfb 100644
--- a/gnu/packages/diffoscope.scm
+++ b/gnu/packages/diffoscope.scm
@@ -45,6 +45,7 @@ (define-module (gnu packages diffoscope)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages llvm)
   #:use-module (gnu packages man)
+  #:use-module (gnu packages maths)
   #:use-module (gnu packages mono)
   #:use-module (gnu packages ocaml)
   #:use-module (gnu packages package-management)