diff --git a/tools/suite_qiime2_core__tools/qiime2_core__tools__import.xml b/tools/suite_qiime2_core__tools/qiime2_core__tools__import.xml
index 8e80cd0..74a7b02 100644
--- a/tools/suite_qiime2_core__tools/qiime2_core__tools__import.xml
+++ b/tools/suite_qiime2_core__tools/qiime2_core__tools__import.xml
@@ -969,7 +969,7 @@ write(json.dumps(inputs))
                                     <option value="individual">Associate individual files</option>
                                 </param>
                                 <when value="collection">
-                                    <param name="elements" type="data_collection" help="This data should be formatted as a FastqGzFormat. See the documentation below for more information. Elements must match regex: .+_.+_L[0-9][0-9][0-9]_R[12]_001\.fastq\.gz"/>
+                                    <param name="elements" type="data_collection" collection_type="list" help="This data should be formatted as a FastqGzFormat. See the documentation below for more information. Elements must match regex: .+_.+_L[0-9][0-9][0-9]_R[12]_001\.fastq\.gz"/>
                                     <conditional name="__q2galaxy__GUI__cond__add_ext__">
                                         <param name="__q2galaxy__GUI__select__ext_pick__" type="select" label="Append an extension?" help="This is needed if your element identifiers lack one.">
                                             <option value="no">No, use element identifiers as is</option>
@@ -1146,7 +1146,7 @@ write(json.dumps(inputs))
                                     <option value="individual">Associate individual files</option>
                                 </param>
                                 <when value="collection">
-                                    <param name="elements" type="data_collection" help="This data should be formatted as a FastqGzFormat. See the documentation below for more information. Elements must match regex: .+_.+_R[12]_001\.fastq\.gz"/>
+                                    <param name="elements" type="data_collection" collection_type="list" help="This data should be formatted as a FastqGzFormat. See the documentation below for more information. Elements must match regex: .+_.+_R[12]_001\.fastq\.gz"/>
                                     <conditional name="__q2galaxy__GUI__cond__add_ext__">
                                         <param name="__q2galaxy__GUI__select__ext_pick__" type="select" label="Append an extension?" help="This is needed if your element identifiers lack one.">
                                             <option value="no">No, use element identifiers as is</option>
@@ -1177,7 +1177,7 @@ write(json.dumps(inputs))
                                     <option value="individual">Associate individual files</option>
                                 </param>
                                 <when value="collection">
-                                    <param name="elements" type="data_collection" help="This data should be formatted as a FastqGzFormat. See the documentation below for more information. Elements must match regex: .+_.+_L[0-9][0-9][0-9]_R[12]_001\.fastq\.gz"/>
+                                    <param name="elementss" type="data_collection" help="This data should be formatted as a FastqGzFormat. See the documentation below for more information. Elements must match regex: .+_.+_L[0-9][0-9][0-9]_R[12]_001\.fastq\.gz"/>
                                     <conditional name="__q2galaxy__GUI__cond__add_ext__">
                                         <param name="__q2galaxy__GUI__select__ext_pick__" type="select" label="Append an extension?" help="This is needed if your element identifiers lack one.">
                                             <option value="no">No, use element identifiers as is</option>
@@ -1657,6 +1657,36 @@ write(json.dumps(inputs))
     <outputs>
         <data name="imported_data" format="qza" from_work_dir="imported_data.qza"/>
     </outputs>
+    <tests>
+        <test>
+            <conditional name="import_root">
+                <param name="type" value="SampleData__ob__PairedEndSequencesWithQuality__cb__"/>
+                <conditional name="__q2galaxy__GUI__cond__format__">
+                    <param name="format" value="CasavaOneEightSingleLanePerSampleDirFmt"/>
+                    <section name="import_sequences">
+                    <conditional name="__q2galaxy__GUI__cond__sequences__">
+                        <param name="__q2galaxy__GUI__select__picker__" value="collection"/>
+                        <param name="elementss">
+                            <collection type="list">
+                                <element name="YY_S49_R1_001.fastq,gz" ftype="tabular" value="YY/YY_S49_R1_001.fastq.gz" />
+                                <element name="YY_S49_R2_001.fastq.gz" ftype="tabular" value="YY/YY_S49_R2_001.fastq.gz" />
+                            </collection>
+                        </param>
+                        <conditional name="__q2galaxy__GUI__cond__add_ext__">
+                            <param name="__q2galaxy__GUI__select__ext_pick__" value="yes"/>
+                            <param name="ext" label="fastq.gz"/>
+                        </conditional>
+                    </conditional>
+                </section>
+                </conditional>
+            </conditional>
+            <output name="imported_data">
+                <assert_contents>
+                    <has_size min="1"/>
+                </assert_contents>
+            </output>
+        </test>
+    </tests>
     <help>
 QIIME 2: tools import
 =====================
diff --git a/tools/suite_qiime2_core__tools/test-data/YY/YY_S49_R1_001.fastq.gz b/tools/suite_qiime2_core__tools/test-data/YY/YY_S49_R1_001.fastq.gz
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diff --git a/tools/suite_qiime2_core__tools/test-data/YY/YY_S49_R2_001.fastq.gz b/tools/suite_qiime2_core__tools/test-data/YY/YY_S49_R2_001.fastq.gz
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