diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 5eee90e450..33c12215e3 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -44,6 +44,7 @@ (define-module (gnu packages engineering)
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system python)
+  #:use-module (guix build-system qt)
   #:use-module (gnu packages)
   #:use-module (gnu packages algebra)
   #:use-module (gnu packages autotools)
@@ -2256,7 +2257,7 @@ (define-public freecad
        (sha256
         (base32
          "170hk1kgrvsddrwykp24wyj0cha78zzmzbf50gn98x7ngqqs395s"))))
-    (build-system cmake-build-system)
+    (build-system qt-build-system)
     (native-inputs
      `(("doxygen" ,doxygen)
        ("graphviz" ,graphviz)