diff --git a/doc/utils/sphinx-config/false_positives.txt b/doc/utils/sphinx-config/false_positives.txt
index fe1e40e8ba..956391a0d2 100644
--- a/doc/utils/sphinx-config/false_positives.txt
+++ b/doc/utils/sphinx-config/false_positives.txt
@@ -2647,6 +2647,7 @@ pscreen
 pscrozi
 pseudodynamics
 pseudopotential
+pSp
 Pstart
 Pstop
 pstyle
@@ -2925,6 +2926,7 @@ Runge
 runtime
 Rutuparna
 rx
+rxd
 rxnave
 rxnsum
 ry