diff --git a/lib/galaxy/datatypes/converters/interval_to_tabix_converter.xml b/lib/galaxy/datatypes/converters/interval_to_tabix_converter.xml
index 2f94c32737c..c4cd0e3aeac 100644
--- a/lib/galaxy/datatypes/converters/interval_to_tabix_converter.xml
+++ b/lib/galaxy/datatypes/converters/interval_to_tabix_converter.xml
@@ -5,7 +5,7 @@
     </requirements>
     <command><![CDATA[
         ln -s '$bgzip' input.bgz &&
-        tabix 
+        tabix
         #if $input1.is_of_type('bed')
             -p bed
         #elif $input1.is_of_type('vcf')
@@ -23,7 +23,7 @@
         if [ ! -s input.bgz.tbi ]; then
             >&2 echo "The converted tabix index file is empty, meaning the input data is invalid.";
             exit 1;
-        fi 
+        fi
         &&
         tabix -l input.bgz
     ]]></command>
@@ -41,6 +41,7 @@
     <tests>
         <test>
             <param name="input1" ftype="bed" value="droPer1.bed"/>
+            <param name="bgzip" ftype="bgzip" value="droPer1.bed.gz"/>
             <output name="output1" ftype="tabix">
                 <assert_contents>
                     <has_size value="133"/>
@@ -55,6 +56,7 @@
         </test>
         <test>
             <param name="input1" ftype="encodepeak" value="encode.broad.peak"/>
+            <param name="bgzip" ftype="bgzip" value="encode.broad.peak.gz"/>
             <output name="output1" ftype="tabix">
                 <assert_contents>
                     <has_size value="110" delta="10"/>
@@ -69,6 +71,7 @@
         </test>
         <test>
             <param name="input1" ftype="gff" value="gff_filter_by_feature_count_out2.gff"/>
+            <param name="bgzip" ftype="bgzip" value="gff_filter_by_feature_count_out2.gff.gz"/>
             <output name="output1" ftype="tabix">
                 <assert_contents>
                     <has_size value="120"/>
@@ -83,6 +86,7 @@
         </test>
         <test>
             <param name="input1" ftype="interval" value="2.interval"/>
+            <param name="bgzip" ftype="bgzip" value="2.interval.gz"/>
             <output name="output1" ftype="tabix">
                 <assert_contents>
                     <has_size value="247"/>
@@ -97,6 +101,7 @@
         </test>
         <test>
             <param name="input1" ftype="vcf" value="vcf_to_maf_in.vcf"/>
+            <param name="bgzip" ftype="bgzip" value="vcf_to_maf_in.vcf.gz"/>
             <output name="output1" ftype="tabix">
                 <assert_contents>
                     <has_size value="143"/>
@@ -111,6 +116,7 @@
         </test>
         <test>
             <param name="input1" ftype="gtf" value="cufflinks_out1.gtf"/>
+            <param name="bgzip" ftype="bgzip" value="cufflinks_out1.gtf.gz"/>
             <output name="output1" ftype="tabix">
                 <assert_contents>
                     <has_size value="125"/>
@@ -119,7 +125,7 @@
             <assert_command>
                 <has_text text="-p gff"/>
             </assert_command>
-        </test>        
+        </test>
     </tests>
     <help>
     </help>