diff --git a/libasn1parser/asn1p_expr2uclass.h b/libasn1parser/asn1p_expr2uclass.h
index 20f3700..8812a0b 100644
--- a/libasn1parser/asn1p_expr2uclass.h
+++ b/libasn1parser/asn1p_expr2uclass.h
@@ -1,8 +1,7 @@
 #ifndef	ASN1_PARSER_EXPR2UCLASS_H
 #define	ASN1_PARSER_EXPR2UCLASS_H
 
-static int
-expr_type2uclass_value[ASN_EXPR_TYPE_MAX]
+static int expr_type2uclass_value[ASN_EXPR_TYPE_MAX]
 		__attribute__ ((unused)) = {
 	[ ASN_BASIC_BOOLEAN ]		= 1,
 	[ ASN_BASIC_INTEGER ]		= 2,
@@ -38,4 +37,37 @@
 	[ ASN_STRING_BMPString ]	= 30,
 };
 
+static char *expr_uclass2str[32] __attribute__ ((unused)) = {
+	[ 0 ]	= 0,			/* If zero length, end-of-content */
+	[ 1 ]	= "BOOLEAN",
+	[ 2 ]	= "INTEGER",
+	[ 3 ]	= "BIT STRING",
+	[ 4 ]	= "OCTET STRING",
+	[ 5 ]	= "NULL",
+	[ 6 ]	= "OBJECT IDENTIFIER",
+	[ 7 ]	= "ObjectDescriptor",
+	[ 8 ]	= "EXTERNAL",
+	[ 9 ]	= "REAL",
+	[ 10 ]	= "ENUMERATED",
+	[ 11 ]	= "EMBEDDED-PDV",
+	[ 12 ]	= "UTF8String",
+	[ 13 ]	= "RELATIVE-OID",
+	[ 14 ]	= 0,
+	[ 16 ]	= "SEQUENCE",		/* Or "SEQUENCE OF" */
+	[ 17 ]	= "SET",		/* Or "SET OF" */
+	[ 18 ]	= "NumericString",	/* " "|"0".."9" */
+	[ 19 ]	= "PrintableString",
+	[ 20 ]	= "TeletexString",
+	[ 21 ]	= "VideotexString",
+	[ 22 ]	= "IA5String",
+	[ 23 ]	= "UTCTime",
+	[ 24 ]	= "GeneralizedTime",
+	[ 25 ]	= "GraphicString",
+	[ 26 ]	= "VisibleString",
+	[ 27 ]	= "GeneralString",
+	[ 28 ]	= "UniversalString",	/* 32-bit UCS-4 */
+	[ 29 ]	= "CharacterString",
+	[ 30 ]	= "BMPString",		/* 16-bit UCS-2 */
+};
+
 #endif	/* ASN1_PARSER_EXPR2UCLASS_H */