diff --git a/tools/mmuphin/mmuphin.xml b/tools/mmuphin/mmuphin.xml
index e6bcbf986f5..920c3855305 100644
--- a/tools/mmuphin/mmuphin.xml
+++ b/tools/mmuphin/mmuphin.xml
@@ -95,7 +95,7 @@
           <data name="diagnostic_plot_output" format="pdf" label="diagnostic figure file"/>
    </outputs>
     <tests>
-        <test expect_num_outputs="3">
+        <test expect_num_outputs="2">
             <param name="input_data" value="CRC_abd.tsv"/>
             <param name="input_metadata" value="CRC_meta.tsv"/>
             <param name="batch_input" value="2"/>