diff --git a/doc/utils/sphinx-config/false_positives.txt b/doc/utils/sphinx-config/false_positives.txt
index bd44de0761..a26bf59647 100644
--- a/doc/utils/sphinx-config/false_positives.txt
+++ b/doc/utils/sphinx-config/false_positives.txt
@@ -2035,6 +2035,7 @@ nucleotides
 num
 numa
 numactl
+numdiff
 numericalfreedom
 numerics
 numpy