diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index b735aa2e19..c3f9f44f8b 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -23,6 +23,7 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix build-system gnu)
   #:use-module (gnu packages)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages boost)
   #:use-module (gnu packages fontutils)
   #:use-module (gnu packages maths)