diff --git a/Resources/Private/Fusion/Prototypes/Image.fusion b/Resources/Private/Fusion/Prototypes/Image.fusion
index b49f586..31d0f1a 100644
--- a/Resources/Private/Fusion/Prototypes/Image.fusion
+++ b/Resources/Private/Fusion/Prototypes/Image.fusion
@@ -42,7 +42,7 @@ prototype(Sitegeist.Kaleidoscope:Image) < prototype(Neos.Fusion:Component) {
     imageSource = null
     srcset = null
     sizes = null
-    alt = null
+    alt = ''
     title = null
     class = null
     loading = null
diff --git a/Resources/Private/Fusion/Prototypes/Picture.fusion b/Resources/Private/Fusion/Prototypes/Picture.fusion
index 076630f..6e28f8c 100644
--- a/Resources/Private/Fusion/Prototypes/Picture.fusion
+++ b/Resources/Private/Fusion/Prototypes/Picture.fusion
@@ -37,7 +37,7 @@ prototype(Sitegeist.Kaleidoscope:Picture) < prototype(Neos.Fusion:Component) {
     formats = null
     width = null
     height = null
-    alt = null
+    alt = ''
     title = null
     class = null
     content = ''