diff --git a/filter/glossary/styles.css b/filter/glossary/styles.css
new file mode 100644
index 00000000000..8a78bdb2b6d
--- /dev/null
+++ b/filter/glossary/styles.css
@@ -0,0 +1 @@
+#glossaryfilteroverlayprogress {position:fixed;top:50%;width:100%;text-align:center;}
diff --git a/mod/glossary/styles.css b/mod/glossary/styles.css
index d7c005bcff1..a4a52c692d7 100644
--- a/mod/glossary/styles.css
+++ b/mod/glossary/styles.css
@@ -27,5 +27,3 @@
 #page-mod-glossary-view table.glossarycategoryheader th {padding:0px;}
 
 #page-mod-glossary-showentry #page-content {min-width:600px;}
-
-#glossaryoverlayprogress {position:fixed;top:50%;width:100%;text-align:center;}
\ No newline at end of file