diff --git a/tools/interactive/interactivetool_cellxgene.xml b/tools/interactive/interactivetool_cellxgene.xml
index 5160216f3a4..7abd1219771 100644
--- a/tools/interactive/interactivetool_cellxgene.xml
+++ b/tools/interactive/interactivetool_cellxgene.xml
@@ -1,6 +1,6 @@
 <tool id="interactive_tool_cellxgene" tool_type="interactive" name="Interactive CellXgene Environment" version="0.1">
     <requirements>
-         <container type="docker">quay.io/biocontainers/cellxgene:0.16.2--py_0</container>
+        <container type="docker">quay.io/biocontainers/cellxgene:0.16.2--py_0</container>
     </requirements>
     <entry_points>
         <entry_point name="Cellxgene Single Cell Visualisation on $infile.display_name" requires_domain="True">