diff --git a/ApiVisualEditor.php b/ApiVisualEditor.php
index db8178036b..20cc9ecfe0 100644
--- a/ApiVisualEditor.php
+++ b/ApiVisualEditor.php
@@ -21,11 +21,10 @@ class ApiVisualEditor extends ApiBase {
 		if ( $params['paction'] === 'parse' ) {
 			if ( $page->exists() ) {
 				$parsed = Http::get(
-					// Insert slash since wgVisualEditorParsoidURL may or may not
-					// end in a slash. Double slashes are no problem --catrope
-					$parsoid . '/' . urlencode(
-						$wgVisualEditorParsoidPrefix . $page->getPrefixedDBkey()
-					)
+					// Insert slash since wgVisualEditorParsoidURL does not
+					// end in a slash
+					$parsoid . '/' . $wgVisualEditorParsoidPrefix . '/' .
+						urlencode( $page->getPrefixedDBkey() )
 				);
 
 				if ( $parsed ) {
diff --git a/VisualEditor.php b/VisualEditor.php
index f58055c135..25882d92ad 100644
--- a/VisualEditor.php
+++ b/VisualEditor.php
@@ -11,9 +11,11 @@
 /* Configuration */
 
 // URL to the Parsoid instance
+// MUST NOT end in a slash due to Parsoid bug
 $wgVisualEditorParsoidURL = 'http://localhost:8000';
 // Interwiki prefix to pass to the Parsoid instance
-$wgVisualEditorParsoidPrefix = 'localhost:';
+// Parsoid will be called as $url/$prefix/$pagename
+$wgVisualEditorParsoidPrefix = 'localhost';
 
 /* Setup */