diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index 1fecda1b7..dac5ad552 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -1381,7 +1381,7 @@ div.wiki img {vertical-align:middle; max-width:100%;}
 .icon-file.image-tiff { background-image: url(../images/files/image.png); }
 .icon-file.application-pdf { background-image: url(../images/files/pdf.png); }
 .icon-file.application-zip { background-image: url(../images/files/zip.png); }
-.icon-file.application-x-gzip { background-image: url(../images/files/zip.png); }
+.icon-file.application-gzip { background-image: url(../images/files/zip.png); }
 
 .sort-handle { width:16px; height:16px; background:url(../images/reorder.png) no-repeat 0 50%; cursor:move; }
 .sort-handle.ajax-loading { background-image: url(../images/loading.gif); }