diff --git a/doc/src/pair_granular.rst b/doc/src/pair_granular.rst
index 73b1ec85ec..f581c502f3 100644
--- a/doc/src/pair_granular.rst
+++ b/doc/src/pair_granular.rst
@@ -770,7 +770,7 @@ in contact.  J. Appl. Mech., ASME 16, 259-268.
 .. _Thornton2013:
 
 **(Thornton et al, 2013)** Thornton, C., Cummins, S. J., & Cleary,
-P. W. (2013).  An investigation of the comparative behaviour of
+P. W. (2013).  An investigation of the comparative behavior of
 alternative contact force models during inelastic collisions. Powder
 Technology, 233, 30-46.
 
diff --git a/doc/utils/sphinx-config/false_positives.txt b/doc/utils/sphinx-config/false_positives.txt
index 633a22d7d7..ed4f69717d 100644
--- a/doc/utils/sphinx-config/false_positives.txt
+++ b/doc/utils/sphinx-config/false_positives.txt
@@ -202,7 +202,6 @@ bcolor
 bdiam
 bdw
 Beckman
-behaviour
 Belak
 Bellott
 benchmarking