diff --git a/data/core/help.cfg b/data/core/help.cfg
index c64bcfd5335d..feb7dd834723 100644
--- a/data/core/help.cfg
+++ b/data/core/help.cfg
@@ -496,7 +496,7 @@ Terrains come in two types: text='basic' terrain types and text='defense caps' for a particular basic terrain type. In that case, the 'best defense' behavior is overrided -- they can never recieve a higher defense rating than the lowest defense cap value for any mixed terrain type which includes that basic type. For example, the loyalist cavalryman has a defense rating of 30% on forests, and a defense cap for forests. Thus, on forested hills, he has a defense rating of 30% rather than 40%, because the mixed rating cannot exceed the cap.
+Some units have text='defense caps' for a particular basic terrain type. In that case, the 'best defense' behavior is overridden -- they can never recieve a higher defense rating than the lowest defense cap value for any mixed terrain type which includes that basic type. For example, the loyalist cavalryman has a defense rating of 30% on forests, and a defense cap for forests. Thus, on forested hills, he has a defense rating of 30% rather than 40%, because the mixed rating cannot exceed the cap.
text='Basic Terrain Types'