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-rw-r--r--gnu/packages/statistics.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 68a8091619..28a513b184 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -4804,7 +4804,7 @@ memory usage.")
(propagated-inputs
(list r-ggplot2 r-gridextra r-viridislite))
(native-inputs
- (list r-knitr)) ; for vignettes
+ (list r-knitr r-testthat)) ; for vignettes
(home-page "https://github.com/sjmgarnier/viridis")
(synopsis "Matplotlib default color map")
(description