diff --git a/american-society-for-microbiology.csl b/american-society-for-microbiology.csl
index 329f0cb2bc..6718038d2a 100644
--- a/american-society-for-microbiology.csl
+++ b/american-society-for-microbiology.csl
@@ -19,7 +19,7 @@
     </contributor>
     <category citation-format="numeric"/>
     <category field="biology"/>
-    <updated>2012-01-01T00:00:00+00:00</updated>
+    <updated>2012-02-21T00:00:00+00:00</updated>
     <summary>Style for all American Society for Microbiology journals.</summary>
     <link href="http://aem.asm.org/misc/journal-ita_org.dtl#03" rel="documentation"/>
     <rights>This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License: http://creativecommons.org/licenses/by-sa/3.0/</rights>
@@ -87,9 +87,13 @@
   </macro>
   <macro name="publisher">
     <group delimiter=", " prefix=". ">
-      <text variable="genre"/>
-      <text variable="publisher"/>
-      <text variable="publisher-place"/>
+      <choose>
+        <if type="article-journal article-magazine" match="none">
+          <text variable="genre"/>
+          <text variable="publisher"/>
+          <text variable="publisher-place"/>
+        </if>
+      </choose>
     </group>
   </macro>
   <macro name="locators">