diff --git a/gepi/gepi-webapp/src/main/java/de/julielab/gepi/webapp/data/GepiQueryParameters.java b/gepi/gepi-webapp/src/main/java/de/julielab/gepi/webapp/data/GepiQueryParameters.java
index effc0b3f..e385531e 100644
--- a/gepi/gepi-webapp/src/main/java/de/julielab/gepi/webapp/data/GepiQueryParameters.java
+++ b/gepi/gepi-webapp/src/main/java/de/julielab/gepi/webapp/data/GepiQueryParameters.java
@@ -17,8 +17,8 @@ public class GepiQueryParameters {
     public static final String ALIST = "alist";
     public static final String BLIST = "blist";
     public static final String TAXID = "taxids";
-    public static final String TAXIDA = "taxidsA";
-    public static final String TAXIDB = "taxidsB";
+    public static final String TAXIDA = "taxidsa";
+    public static final String TAXIDB = "taxidsb";
     public static final String EVENTTYPES = "eventtypes";
     public static final String FACTUALITY = "factuality";
     public static final String FILTERFIELDSCONNECTIONOPERATOR = "filterconnector";
diff --git a/gepi/gepi-webapp/src/main/resources/de/julielab/gepi/webapp/pages/Help.tml b/gepi/gepi-webapp/src/main/resources/de/julielab/gepi/webapp/pages/Help.tml
index e71df1cb..78f6ad54 100644
--- a/gepi/gepi-webapp/src/main/resources/de/julielab/gepi/webapp/pages/Help.tml
+++ b/gepi/gepi-webapp/src/main/resources/de/julielab/gepi/webapp/pages/Help.tml
@@ -520,6 +520,8 @@
                                     <tr><td><code>alist</code></td><td>Items of list A as described in <a href="#input-specification" class="link-secondary">Input Specification</a>.</td><td>mtor,s6k</td></tr>
                                     <tr><td><code>blist</code></td><td>Items of list B as described in <a href="#input-specification" class="link-secondary">Input Specification</a>.</td><td>mtor,s6k</td></tr>
                                     <tr><td><code>taxids</code></td><td>Organism IDs from the <a href="https://www.ncbi.nlm.nih.gov/taxonomy" class="link-secondary" target="_blank">NCBI Taxonomy</a>.</td><td>9606</td></tr>
+                                    <tr><td><code>taxidsa</code></td><td>Organism IDs from the <a href="https://www.ncbi.nlm.nih.gov/taxonomy" class="link-secondary" target="_blank">NCBI Taxonomy</a>.</td><td>9606</td></tr>
+                                    <tr><td><code>taxidsb</code></td><td>Organism IDs from the <a href="https://www.ncbi.nlm.nih.gov/taxonomy" class="link-secondary" target="_blank">NCBI Taxonomy</a>.</td><td>9606</td></tr>
                                     <tr><td><code>eventtypes</code></td><td>A list of items in {<code>Regulation</code>, <code>Positive_regulation</code>, <code>Negative_regulation</code>, <code>Binding</code>, <code>Localization</code>, <code>Phosphorylation</code>}. Omitting this parameter leads to no restrictions in event types.</td><td>Regulation,Phosphorylation</td></tr>
                                     <tr><td><code>factuality</code></td><td>A number between 0 and 6 (inclusive). Represents the minimum factuality rating of returned events where 0 means a negated event statement and 6 means an assertive statement.</td><td>3</td></tr>
                                     <tr><td><code>filterconnector</code></td><td>One of {<code>AND</code> or <code>OR</code>}. Specifies how <code>sentencefilter</code> and <code>paragraphfilter</code> (see blow) are combined. I.e. must only one filter match or must both match for an event to be returned by the search?</td><td>AND</td></tr>