diff --git a/app/src/main/java/eu/faircode/email/FragmentAbout.java b/app/src/main/java/eu/faircode/email/FragmentAbout.java
index aa41df1358..d3d27a01ef 100644
--- a/app/src/main/java/eu/faircode/email/FragmentAbout.java
+++ b/app/src/main/java/eu/faircode/email/FragmentAbout.java
@@ -109,6 +109,8 @@ public class FragmentAbout extends FragmentBase {
             llContributors.addView(tv);
         }
 
+        FragmentDialogTheme.setBackground(context, view, false);
+
         return view;
     }
 
diff --git a/app/src/main/java/eu/faircode/email/FragmentLegend.java b/app/src/main/java/eu/faircode/email/FragmentLegend.java
index 1b77d27d29..8264fb4f76 100644
--- a/app/src/main/java/eu/faircode/email/FragmentLegend.java
+++ b/app/src/main/java/eu/faircode/email/FragmentLegend.java
@@ -71,6 +71,8 @@ public class FragmentLegend extends FragmentBase {
             }
         }
 
+        FragmentDialogTheme.setBackground(getContext(), view, false);
+
         return view;
     }