diff --git a/Unicode/entities.txt b/Unicode/entities.txt
index 1d4871f1a..99b430862 100644
--- a/Unicode/entities.txt
+++ b/Unicode/entities.txt
@@ -294,7 +294,7 @@ b.Xi	ISOgrk4	0x039E	# GREEK CAPITAL LETTER XI
 b.alpha	ISOgrk4	0x03B1	# GREEK SMALL LETTER ALPHA
 b.beta	ISOgrk4	0x03B2	# GREEK SMALL LETTER BETA
 b.chi	ISOgrk4	0x03C7	# GREEK SMALL LETTER CHI
-b.delta	?	0x03B3	# GREEK SMALL LETTER GAMMA
+b.delta	ISOgrk4	0x03B4	# GREEK SMALL LETTER DELTA
 b.epsi	ISOgrk4	0x03B5	# GREEK SMALL LETTER EPSILON
 b.epsis	ISOgrk4	0x03B5	# GREEK SMALL LETTER EPSILON
 b.epsiv	ISOgrk4	0x03B5	# GREEK SMALL LETTER EPSILON
diff --git a/src/intl/entity.inc b/src/intl/entity.inc
index 8e3025ab5..c17a2a727 100644
--- a/src/intl/entity.inc
+++ b/src/intl/entity.inc
@@ -259,7 +259,7 @@ struct entity { char *s; unicode_val_T c; } entities [1002] = {
 	{ "b.alpha",   0x03B1 }, /* GREEK SMALL LETTER ALPHA                       */
 	{ "b.beta",    0x03B2 }, /* GREEK SMALL LETTER BETA                        */
 	{ "b.chi",     0x03C7 }, /* GREEK SMALL LETTER CHI                         */
-	{ "b.delta",   0x03B3 }, /* GREEK SMALL LETTER GAMMA                       */
+	{ "b.delta",   0x03B4 }, /* GREEK SMALL LETTER DELTA                       */
 	{ "b.epsi",    0x03B5 }, /* GREEK SMALL LETTER EPSILON                     */
 	{ "b.epsis",   0x03B5 }, /* GREEK SMALL LETTER EPSILON                     */
 	{ "b.epsiv",   0x03B5 }, /* GREEK SMALL LETTER EPSILON                     */
@@ -1005,4 +1005,4 @@ struct entity { char *s; unicode_val_T c; } entities [1002] = {
 	{ NULL, 0 }
 };
 
-#define N_ENTITIES     1001
+#define N_ENTITIES 1001