diff --git a/tools/data_source/wormbase.xml b/tools/data_source/wormbase.xml
index d437c1d9c80..abdb99d1d97 100644
--- a/tools/data_source/wormbase.xml
+++ b/tools/data_source/wormbase.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<tool name="Wormbase" id="wormbase" tool_type="data_source" URL_method="get">
+<tool name="Wormbase" id="wormbase" tool_type="data_source" URL_method="post">
     <description>server</description>
     <command interpreter="python">data_source.py $output</command>
     <inputs action="http://www.wormbase.org/db/seq/gbrowse/c_elegans/" check_values="false" method="get" target="_top"> 
diff --git a/tools/data_source/wormbase_test.xml b/tools/data_source/wormbase_test.xml
index 9242840d77f..73efe44aad7 100644
--- a/tools/data_source/wormbase_test.xml
+++ b/tools/data_source/wormbase_test.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<tool name="Wormbase" id="wormbase_test" tool_type="data_source" URL_method="get">
+<tool name="Wormbase" id="wormbase_test" tool_type="data_source" URL_method="post">
 	<description>test server</description>
 	<command interpreter="python">data_source.py $output</command>
 	<inputs action="http://dev.wormbase.org/db/seq/gbrowse/c_elegans/" check_values="false" method="get" target="_top">