1 files changed, 1 insertions, 1 deletions

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index d8a199dd7fd..011a5aed64b 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -24315,7 +24315,7 @@ features in their own packages.")
            r-assertive-types
            r-knitr))
     (native-inputs
-     (list r-knitr))
+     (list r-knitr r-testthat))
     (home-page "https://bitbucket.org/richierocks/assertive")
     (synopsis "Readable check functions to ensure code integrity")
     (description