diff --git a/system/src/Grav/Common/Page/Medium/ImageMedium.php b/system/src/Grav/Common/Page/Medium/ImageMedium.php
index 9b0632c13..732df70de 100644
--- a/system/src/Grav/Common/Page/Medium/ImageMedium.php
+++ b/system/src/Grav/Common/Page/Medium/ImageMedium.php
@@ -166,7 +166,7 @@ class ImageMedium extends Medium
             $this->reset();
         }
 
-        return Grav::instance()['base_url'] . $output . $this->querystring() . $this->urlHash();
+        return Grav::instance()['base_url'] . '/' . ltrim($output . $this->querystring() . $this->urlHash(), '/');
     }
 
     /**
diff --git a/system/src/Grav/Common/Page/Medium/Medium.php b/system/src/Grav/Common/Page/Medium/Medium.php
index 77396d695..d6f147510 100644
--- a/system/src/Grav/Common/Page/Medium/Medium.php
+++ b/system/src/Grav/Common/Page/Medium/Medium.php
@@ -160,7 +160,7 @@ class Medium extends Data implements RenderableInterface
             $this->reset();
         }
 
-        return Grav::instance()['base_url'] . $output . $this->querystring() . $this->urlHash();
+        return Grav::instance()['base_url'] . '/' . ltrim($output . $this->querystring() . $this->urlHash(), '/');
     }
 
     /**