diff --git a/lib/asn1/asn1_err.et b/lib/asn1/asn1_err.et
index 9d823c1ab..4e9544cd5 100644
--- a/lib/asn1/asn1_err.et
+++ b/lib/asn1/asn1_err.et
@@ -1,12 +1,20 @@
+#
+# Error messages for the asn.1 library
+#
+# This might look like a com_err file, but it not
+#
+# $Id$
+
 error_table asn1
-error_code ASN1_BAD_TIMEFORMAT, "ASN.1 failed call to system time library"
-error_code ASN1_MISSING_FIELD, "ASN.1 structure is missing a required field"
-error_code ASN1_MISPLACED_FIELD, "ASN.1 unexpected field number"
-error_code ASN1_TYPE_MISMATCH, "ASN.1 type numbers are inconsistent"
-error_code ASN1_OVERFLOW, "ASN.1 value too large"
-error_code ASN1_OVERRUN, "ASN.1 encoding ended unexpectedly"
-error_code ASN1_BAD_ID, "ASN.1 identifier doesn't match expected value"
-error_code ASN1_BAD_LENGTH, "ASN.1 length doesn't match expected value"
-error_code ASN1_BAD_FORMAT, "ASN.1 badly-formatted encoding"
-error_code ASN1_PARSE_ERROR, "ASN.1 parse error"
+prefix ASN1
+error_code BAD_TIMEFORMAT, "ASN.1 failed call to system time library"
+error_code MISSING_FIELD, "ASN.1 structure is missing a required field"
+error_code MISPLACED_FIELD, "ASN.1 unexpected field number"
+error_code TYPE_MISMATCH, "ASN.1 type numbers are inconsistent"
+error_code OVERFLOW, "ASN.1 value too large"
+error_code OVERRUN, "ASN.1 encoding ended unexpectedly"
+error_code BAD_ID, "ASN.1 identifier doesn't match expected value"
+error_code BAD_LENGTH, "ASN.1 length doesn't match expected value"
+error_code BAD_FORMAT, "ASN.1 badly-formatted encoding"
+error_code PARSE_ERROR, "ASN.1 parse error"
 end
diff --git a/lib/error/asn1_err.et b/lib/error/asn1_err.et
index 9d823c1ab..4e9544cd5 100644
--- a/lib/error/asn1_err.et
+++ b/lib/error/asn1_err.et
@@ -1,12 +1,20 @@
+#
+# Error messages for the asn.1 library
+#
+# This might look like a com_err file, but it not
+#
+# $Id$
+
 error_table asn1
-error_code ASN1_BAD_TIMEFORMAT, "ASN.1 failed call to system time library"
-error_code ASN1_MISSING_FIELD, "ASN.1 structure is missing a required field"
-error_code ASN1_MISPLACED_FIELD, "ASN.1 unexpected field number"
-error_code ASN1_TYPE_MISMATCH, "ASN.1 type numbers are inconsistent"
-error_code ASN1_OVERFLOW, "ASN.1 value too large"
-error_code ASN1_OVERRUN, "ASN.1 encoding ended unexpectedly"
-error_code ASN1_BAD_ID, "ASN.1 identifier doesn't match expected value"
-error_code ASN1_BAD_LENGTH, "ASN.1 length doesn't match expected value"
-error_code ASN1_BAD_FORMAT, "ASN.1 badly-formatted encoding"
-error_code ASN1_PARSE_ERROR, "ASN.1 parse error"
+prefix ASN1
+error_code BAD_TIMEFORMAT, "ASN.1 failed call to system time library"
+error_code MISSING_FIELD, "ASN.1 structure is missing a required field"
+error_code MISPLACED_FIELD, "ASN.1 unexpected field number"
+error_code TYPE_MISMATCH, "ASN.1 type numbers are inconsistent"
+error_code OVERFLOW, "ASN.1 value too large"
+error_code OVERRUN, "ASN.1 encoding ended unexpectedly"
+error_code BAD_ID, "ASN.1 identifier doesn't match expected value"
+error_code BAD_LENGTH, "ASN.1 length doesn't match expected value"
+error_code BAD_FORMAT, "ASN.1 badly-formatted encoding"
+error_code PARSE_ERROR, "ASN.1 parse error"
 end
diff --git a/lib/krb5/error/asn1_err.et b/lib/krb5/error/asn1_err.et
index 9d823c1ab..4e9544cd5 100644
--- a/lib/krb5/error/asn1_err.et
+++ b/lib/krb5/error/asn1_err.et
@@ -1,12 +1,20 @@
+#
+# Error messages for the asn.1 library
+#
+# This might look like a com_err file, but it not
+#
+# $Id$
+
 error_table asn1
-error_code ASN1_BAD_TIMEFORMAT, "ASN.1 failed call to system time library"
-error_code ASN1_MISSING_FIELD, "ASN.1 structure is missing a required field"
-error_code ASN1_MISPLACED_FIELD, "ASN.1 unexpected field number"
-error_code ASN1_TYPE_MISMATCH, "ASN.1 type numbers are inconsistent"
-error_code ASN1_OVERFLOW, "ASN.1 value too large"
-error_code ASN1_OVERRUN, "ASN.1 encoding ended unexpectedly"
-error_code ASN1_BAD_ID, "ASN.1 identifier doesn't match expected value"
-error_code ASN1_BAD_LENGTH, "ASN.1 length doesn't match expected value"
-error_code ASN1_BAD_FORMAT, "ASN.1 badly-formatted encoding"
-error_code ASN1_PARSE_ERROR, "ASN.1 parse error"
+prefix ASN1
+error_code BAD_TIMEFORMAT, "ASN.1 failed call to system time library"
+error_code MISSING_FIELD, "ASN.1 structure is missing a required field"
+error_code MISPLACED_FIELD, "ASN.1 unexpected field number"
+error_code TYPE_MISMATCH, "ASN.1 type numbers are inconsistent"
+error_code OVERFLOW, "ASN.1 value too large"
+error_code OVERRUN, "ASN.1 encoding ended unexpectedly"
+error_code BAD_ID, "ASN.1 identifier doesn't match expected value"
+error_code BAD_LENGTH, "ASN.1 length doesn't match expected value"
+error_code BAD_FORMAT, "ASN.1 badly-formatted encoding"
+error_code PARSE_ERROR, "ASN.1 parse error"
 end