diff --git a/datatypes_conf.xml.sample b/datatypes_conf.xml.sample
index 89b57430e55..4ff7d638a21 100644
--- a/datatypes_conf.xml.sample
+++ b/datatypes_conf.xml.sample
@@ -99,7 +99,7 @@
     <datatype extension="gtf" type="galaxy.datatypes.interval:Gtf" display_in_upload="true">
         <converter file="gff_to_interval_index_converter.xml" target_datatype="interval_index"/>
         <converter file="bed_gff_or_vcf_to_bigwig_converter.xml" target_datatype="bigwig"/>
-	<display file="igb/gtf.xml" />
+        <display file="igb/gtf.xml" />
     </datatype>
     <datatype extension="toolshed.gz" type="galaxy.datatypes.binary:Binary" mimetype="multipart/x-gzip" subclass="True" />
     <datatype extension="h5" type="galaxy.datatypes.binary:Binary" mimetype="application/octet-stream" subclass="True" />
diff --git a/display_applications/igb/gtf.xml b/display_applications/igb/gtf.xml
index 3804f339fe2..c2e8b5b0b74 100644
--- a/display_applications/igb/gtf.xml
+++ b/display_applications/igb/gtf.xml
@@ -1,17 +1,17 @@
 <display id="igb_gtf" version="1.0.0" name="display in IGB">
     
-	<link id="View" name="View">
-		<url>$bioviz</url>
-		<param type="data" name="gtf_file_for_name" viewable="False"/>
-		<param type="template" name="niceName" viewable="False" strip="True">
-			#import re
-			#set nm=$gtf_file_for_name.name
-			${re.sub('\W',"_",nm)}
-		</param>
-		<param type="data" name="gtf_file" url="${niceName}.gtf" strip_https="True" />
-		
-		<param type="template" name="bioviz" strip="True" >
-     		http://bioviz.org/igb/galaxy.html?version=${gtf_file.dbkey}&amp;loadresidues=false&amp;feature_url_0=${gtf_file.url}&amp;sym_name_0=${niceName}&amp;sym_method_0=${gtf_file.url}&amp;query_url=${gtf_file.url}&amp;server_url=galaxy
+    <link id="View" name="View">
+        <url>$bioviz</url>
+        <param type="data" name="gtf_file_for_name" viewable="False"/>
+        <param type="template" name="niceName" viewable="False" strip="True">
+            #import re
+            #set nm=$gtf_file_for_name.name
+            ${re.sub('\W',"_",nm)}
         </param>
-	</link>
+        <param type="data" name="gtf_file" url="${niceName}.gtf" strip_https="True" />
+        
+        <param type="template" name="bioviz" strip="True" >
+             http://bioviz.org/igb/galaxy.html?version=${gtf_file.dbkey}&amp;loadresidues=false&amp;feature_url_0=${gtf_file.url}&amp;sym_name_0=${niceName}&amp;sym_method_0=${gtf_file.url}&amp;query_url=${gtf_file.url}&amp;server_url=galaxy
+        </param>
+    </link>
 </display>
\ No newline at end of file