diff --git a/IkiWiki/Plugin/osm.pm b/IkiWiki/Plugin/osm.pm
index c9650d014..b8255bb13 100644
--- a/IkiWiki/Plugin/osm.pm
+++ b/IkiWiki/Plugin/osm.pm
@@ -507,7 +507,7 @@ sub include_javascript ($) {
 		}
 	}
 	if ($loader) {
-		return embed_map_code($page) . "<script type=\"text/javascript\" charset=\"utf-8\">$loader</script>";
+		return embed_map_code($page) . "<script type=\"text/javascript\">$loader</script>";
 	}
 	else {
         	return '';
@@ -534,7 +534,7 @@ sub cgi($) {
 	print "<html><body>";
 	print "<div id=\"mapdiv-$map\"></div>";
 	print embed_map_code();
-	print "<script type=\"text/javascript\" charset=\"utf-8\">";
+	print "<script type=\"text/javascript\">";
 	print map_setup_code($map, $map,
 		lat => "urlParams['lat']",
 		lon => "urlParams['lon']",
diff --git a/debian/changelog b/debian/changelog
index 8de229175..a984aa4f2 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -16,6 +16,8 @@ ikiwiki (3.20130904.2) UNRELEASED; urgency=low
     rather than using the internal xapain database.
     (googlesearch plugin is too hard to turn on when xapain databases
     corrupt themselves, which happens all too frequently).
+  * osm: Remove invalid use of charset on embedded javascript tags.
+    Closes: #731197
 
  -- Joey Hess <joeyh@debian.org>  Thu, 05 Sep 2013 10:01:10 -0400
 
