diff --git a/qse/include/qse/sed/sed.h b/qse/include/qse/sed/sed.h
index df51eda0..b928a124 100644
--- a/qse/include/qse/sed/sed.h
+++ b/qse/include/qse/sed/sed.h
@@ -62,10 +62,10 @@ enum qse_sed_errnum_t
 {
 	QSE_SED_ENOERR,  /**< no error occurred */
 	QSE_SED_ENOMEM,  /**< insufficient memory is available */
-	QSE_SED_ETMTXT,  /**< too much text */
 	QSE_SED_ECMDNR,  /**< a command is not recognized */
 	QSE_SED_ECMDMS,  /**< a command is missing */
 	QSE_SED_ECMDIC,  /**< a command is incomplete */
+	QSE_SED_EREXIC,  /**< regular expression incomplete */
 	QSE_SED_EREXBL,  /**< regular expression build error */
 	QSE_SED_EREXMA,  /**< regular expression match error */
 	QSE_SED_EA1PHB,  /**< address 1 prohibited */
diff --git a/qse/lib/sed/err.c b/qse/lib/sed/err.c
index 0380e9a2..d6f15881 100644
--- a/qse/lib/sed/err.c
+++ b/qse/lib/sed/err.c
@@ -24,13 +24,13 @@ static const qse_char_t* geterrstr (int errnum)
  	{
 		QSE_T("no error"),
 		QSE_T("out of memory"),
-		QSE_T("too much text"),
-		QSE_T("command ${0} not recognized"),
+		QSE_T("command '${0}' not recognized"),
 		QSE_T("command code missing"),
-		QSE_T("command ${0} not terminated properly"),
-		QSE_T("regular expression build error"),
-		QSE_T("regular expression match error"),
-		QSE_T("address 1 prohibited"),
+		QSE_T("command '${0}' not terminated properly"),
+		QSE_T("regular expression '${0}' incomplete"),
+		QSE_T("failed to compile regular expression '${0}'"),
+		QSE_T("failed to match regular expression"),
+		QSE_T("address 1 prohibited for '${0}'"),
 		QSE_T("address 2 prohibited"),
 		QSE_T("invalid step address"),
 		QSE_T("a new line expected"),
@@ -39,8 +39,8 @@ static const qse_char_t* geterrstr (int errnum)
 		QSE_T("garbage after a backslash"),
 		QSE_T("a semicolon expected"),
 		QSE_T("empty label name"),
-		QSE_T("duplicate label name ${0}"),
-		QSE_T("label ${0} not found"),
+		QSE_T("duplicate label name '${0}'"),
+		QSE_T("label '${0}' not found"),
 		QSE_T("empty file name"),
 		QSE_T("illegal file name"),
 		QSE_T("strings in translation set not the same length"),
diff --git a/qse/lib/sed/sed.c b/qse/lib/sed/sed.c
index 9a181530..6c3f8a29 100644
--- a/qse/lib/sed/sed.c
+++ b/qse/lib/sed/sed.c
@@ -262,7 +262,10 @@ static void* compile_rex (qse_sed_t* sed, qse_char_t rxend)
 		c = NXTSC (sed);
 		if (c == QSE_CHAR_EOF || c == QSE_T('\n'))
 		{
-			sed->errnum = QSE_SED_ETMTXT;
+			SETERR1 (sed, QSE_SED_EREXIC, 0, 
+				QSE_STR_PTR(&sed->rexbuf),
+				QSE_STR_LEN(&sed->rexbuf)
+			);
 			return QSE_NULL;
 		}
 
@@ -274,7 +277,10 @@ static void* compile_rex (qse_sed_t* sed, qse_char_t rxend)
 			c = CURSC (sed);
 			if (c == QSE_CHAR_EOF || c == QSE_T('\n'))
 			{
-				sed->errnum = QSE_SED_ETMTXT;
+				SETERR1 (sed, QSE_SED_EREXIC, 0, 
+					QSE_STR_PTR(&sed->rexbuf),
+					QSE_STR_LEN(&sed->rexbuf)
+				);
 				return QSE_NULL;
 			}
 
@@ -298,7 +304,10 @@ static void* compile_rex (qse_sed_t* sed, qse_char_t rxend)
 	);
 	if (code == QSE_NULL)
 	{
-		sed->errnum = QSE_SED_EREXBL;
+		SETERR1 (sed, QSE_SED_EREXBL, 0, 
+			QSE_STR_PTR(&sed->rexbuf),
+			QSE_STR_LEN(&sed->rexbuf)
+		);
 		return QSE_NULL;
 	}
 
@@ -343,9 +352,7 @@ static qse_sed_adr_t* get_address (qse_sed_t* sed, qse_sed_adr_t* a)
 		c = NXTSC (sed);
 		if (c == QSE_CHAR_EOF || c == QSE_T('\n'))
 		{
-			/* TODO: change error code - 
-			 *       unterminated address regular expression */
-			sed->errnum = QSE_SED_ETMTXT;
+			SETERR1 (sed, QSE_SED_EREXIC, 0, QSE_T(""), 0);
 			return QSE_NULL;
 		}
 
@@ -811,7 +818,10 @@ static int get_subst (qse_sed_t* sed, qse_sed_cmd_t* cmd)
 	);
 	if (cmd->u.subst.rex == QSE_NULL)
 	{
-		sed->errnum = QSE_SED_EREXBL;
+		SETERR1 (sed, QSE_SED_EREXBL, 0, 
+			QSE_STR_PTR(t[0]),
+			QSE_STR_LEN(t[0])
+		);
 		goto oops;
 	}	
 
@@ -968,7 +978,7 @@ restart:
 			if (cmd->a1.type != QSE_SED_ADR_NONE)
 			{
 				/* label cannot have an address */
-				sed->errnum = QSE_SED_EA1PHB;
+				SETERR1 (sed, QSE_SED_EA1PHB, 0, &cmd->type, 1);
 				return -1;
 			}
 
diff --git a/qse/test/sed/Makefile.am b/qse/test/sed/Makefile.am
index 9dec592a..f2d9a962 100644
--- a/qse/test/sed/Makefile.am
+++ b/qse/test/sed/Makefile.am
@@ -1,11 +1,14 @@
 AM_CPPFLAGS = -I$(top_srcdir)/include
 
-bin_PROGRAMS = sed01 sed02
+bin_PROGRAMS = sed01
 
 LDFLAGS = -L../../lib/cmn -L../../lib/utl -L../../lib/sed
 LDADD = -lqsesed -lqseutl -lqsecmn $(LIBM)
 
 sed01_SOURCES = sed01.c
 
+if ENABLE_CXX
+bin_PROGRAMS += sed02
 sed02_SOURCES = sed02.cpp
 sed02_LDADD = -lqsesed++ $(LDADD)
+endif