diff --git a/man/groff_char.man b/man/groff_char.man
index f393578..edd3792 100644
--- a/man/groff_char.man
+++ b/man/groff_char.man
@@ -842,7 +842,7 @@ right angle bracket
 T}
 
 \[bv]	\e[bv]	braceex	u23AA	T{
-curly brace vertical extension
+curly brace vertical extension *** +
 T}
 \[braceex]	\e[braceex]	braceex	u23AA	T{
 curly brace vertical extension
@@ -1169,18 +1169,18 @@ T}
 \[/_]	\e[/_]	angle	u2220	angle
 \[pp]	\e[pp]	perpendicular	u22A5	perpendicular
 \[is]	\e[is]	integral	u222B	integral
-\[integral]	\e[integral]	integral	u222B	integral
-\[sum]	\e[sum]	summation	u2211	summation
-\[product]	\e[product]	product	u220F	product
-\[coproduct]	\e[coproduct]	uni2210	u2210	coproduct
+\[integral]	\e[integral]	integral	u223B	integral ***
+\[sum]	\e[sum]	summation	u2211	summation ***
+\[product]	\e[product]	product	u220F	product ***
+\[coproduct]	\e[coproduct]	uni2210	u2210	coproduct ***
 \[gr]	\e[gr]	gradient	u2207	gradient
 \[sr]	\e[sr]	radical	u221A	square root
 \[sqrt]	\e[sqrt]	radical	u221A	square root
 \[radicalex]	\e[radicalex]	radicalex	---	T{
-square root continuation
+square root continuation ***
 T}
 \[sqrtex]	\e[sqrtex]	radicalex	---	T{
-square root continuation
+square root continuation ***
 T}
 
 \[lc]	\e[lc]	uni2308	u2308	left ceiling