diff --git a/xml/registry.rnc b/xml/registry.rnc
index 1d336fcf..3d4f459f 100644
--- a/xml/registry.rnc
+++ b/xml/registry.rnc
@@ -403,7 +403,7 @@ Command = element command {
 #   <require> / <remove> contains features to require or remove in
 #                        this version
 #     profile - only require/remove when generated profile matches
-#     etype - can but "enum", "bitfield", "constants" or "OpenCL-C only"
+#     etype - can be "enum", "bitfield", "constants" or "OpenCL-C only"
 #               If omited, etype="enum" is assumed
 #     group - type name, dedicated to a select group of enums
 #               Only exists for "enum" and "bitfield" etype's
@@ -485,7 +485,7 @@ Extensions = element extensions {
 # In addition, <require> / <remove> tags also support attributes:
 #     api - only require/remove these features for the matching API.
 #       Not a regular expression.
-#     etype - can but "enum", "bitfield", "constants" or "OpenCL-C only"
+#     etype - can be "enum", "bitfield", "constants" or "OpenCL-C only"
 #               If omited, etype="enum" is assumed
 #     group - type name, dedicated to a select group of enums
 #               Only exists for "enum" and "bitfield" etype's