diff --git a/gnu/packages/simulation.scm b/gnu/packages/simulation.scm
index 014aef4730..cda6f3c567 100644
--- a/gnu/packages/simulation.scm
+++ b/gnu/packages/simulation.scm
@@ -207,6 +207,6 @@ (define-public openfoam
 chemical reaction can be modelled.  Numerical methods are included to deal with
 sharp gradients, such as those encountered in flows with shock waves and flows
 with gas/liquid interfaces.  Large problems may be split into smaller, connected
-problems for efficient solution on parallel systems")
+problems for efficient solution on parallel systems.")
     (license license:gpl3+)
     (home-page "https://openfoam.org")))