diff --git a/renderer/fifty_ohm_html_renderer.py b/renderer/fifty_ohm_html_renderer.py
index bdf0d54..8743ed6 100644
--- a/renderer/fifty_ohm_html_renderer.py
+++ b/renderer/fifty_ohm_html_renderer.py
@@ -199,11 +199,9 @@ class FiftyOhmHtmlRenderer(HtmlRenderer):
             """
 
     def render_picture(self, token):
+        alt_text = "Alt-Text noch nicht verfügbar"
         if self.picture_handler is not None:
-            alt_text = self.picture_handler(token.id)
-
-            if alt_text is None:
-                alt_text = "Alt-Text noch nicht verfügbar"
+            alt_text = self.picture_handler(token.id) or alt_text
 
         return self.render_picture_helper(token.id, token.ref, token.text, token.number, alt_text)
 
diff --git a/test/test_picture.py b/test/test_picture.py
index 23aef01..ea1eced 100644
--- a/test/test_picture.py
+++ b/test/test_picture.py
@@ -9,7 +9,9 @@ from test.util import paragraph
 @pytest.mark.html
 def test_picture_html():
     assertions = {
-        "[picture:123:abc:Text]": FiftyOhmHtmlRenderer.render_picture_helper("123", "abc", "Text", "TODO"),
+        "[picture:0:abc:Text]": FiftyOhmHtmlRenderer.render_picture_helper(
+            "0", "abc", "Text", "TODO", "Alt-Text noch nicht verfügbar"
+        ),
     }
 
     for assertion in assertions:
@@ -19,7 +21,7 @@ def test_picture_html():
 @pytest.mark.latex
 def test_picture_latex():
     assertions = {
-        "[picture:123:abc:Text]": FiftyOhmLaTeXRenderer.render_picture_helper("123", "abc", "Text", "TODO"),
+        "[picture:0:abc:Text]": FiftyOhmLaTeXRenderer.render_picture_helper("0", "abc", "Text", "TODO"),
     }
 
     for assertion in assertions: