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-rw-r--r--gnu/packages/cran.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index ec1f2e10f4..9dc075ffb8 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -35,6 +35,7 @@
   #:use-module (gnu packages maths)
   #:use-module (gnu packages mpi)
   #:use-module (gnu packages perl)
+  #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages statistics)
   #:use-module (gnu packages web))