diff --git a/tools/iqtree/iqtree.xml b/tools/iqtree/iqtree.xml
index 31c0cc78739..36d198866b6 100644
--- a/tools/iqtree/iqtree.xml
+++ b/tools/iqtree/iqtree.xml
@@ -362,6 +362,15 @@ $bootstrap_parameters.nonparametric_bootstrap.tbe
 #if str($miscellaneous_options.fconst) != ''
     -fconst '$miscellaneous_options.fconst'
 #end if
+
+#if str($miscellaneous_options.blmin) != ''
+    -blmin $miscellaneous_options.blmin
+#end if
+
+#if str($miscellaneous_options.blmax) != ''
+    -blmax $miscellaneous_options.blmax
+#end if
+
 ]]>
     </command>
     <inputs>
@@ -684,6 +693,8 @@ IQ-TREE also works for codon, binary and morphological data.
                 <expand macro="sanitize_query"
                 validinitial="string.digits,string.punctuation" />
             </param>
+            <param argument="-blmin" type="float" min="0" max="1" value="" optional="true" label="Specify minimum branch length" help="Default: the smaller of 0.000001 and 0.1/alignment_length." />
+            <param argument="-blmax" type="float" min="0" max="1" value="" optional="true" label="Specify the maximum branch length" help="Default: 10" />
         </section>
     </inputs>
     <outputs>