diff --git a/bin/expr/expr.1 b/bin/expr/expr.1
index a2b5441d17a4..d02105561fde 100644
--- a/bin/expr/expr.1
+++ b/bin/expr/expr.1
@@ -100,7 +100,7 @@ or 0 if the relation is false.
 Return the results of addition or subtraction of integer-valued arguments.
 .It Ar expr1 Bro *, /, % Brc Ar expr2
 Return the results of multiplication, integer division, or remainder of integer-valued arguments.
-.It Ar expr1 Li : Ar expr2
+.It Ar expr1 Li \&: Ar expr2
 The
 .Dq Li \&:
 operator matches