--- a/qiime2/qiime_taxa_barplot.xml	Sun Jul 21 02:21:34 2019 -0400
+++ b/qiime2/qiime_taxa_barplot.xml	Wed Jul 31 03:06:00 2019 -0400
@@ -31,7 +31,7 @@
 		<param format="qza,no_unzip.zip" label="--i-table: ARTIFACT FeatureTable[Frequency] Feature table to visualize at various taxonomic levels.                                    [required]" name="itable" optional="False" type="data"/>
 		<param format="qza,no_unzip.zip" label="--i-taxonomy: ARTIFACT FeatureData[Taxonomy] Taxonomic annotations for features in the provided feature table. All features in the feature table must have a corresponding taxonomic annotation. Taxonomic annotations that are not present in the feature table will be ignored.                           [required]" name="itaxonomy" optional="False" type="data"/>
 
-		<repeat name="input_files_mmetadatafile" optional="True" title="--m-metadata-file">
+		<repeat name="input_files_mmetadatafile" optional="True" title="--m-metadata-file  [required]">
 			<param label="--m-metadata-file: Metadata file or artifact viewable as metadata. This option may be supplied multiple times to merge metadata. [optional]" name="additional_input" type="data" format="tabular,qza,no_unzip.zip" />
 		</repeat>