diff --git a/app/src/main/java/eu/faircode/email/HtmlHelper.java b/app/src/main/java/eu/faircode/email/HtmlHelper.java
index 91a54d82b8..98f0bfbc79 100644
--- a/app/src/main/java/eu/faircode/email/HtmlHelper.java
+++ b/app/src/main/java/eu/faircode/email/HtmlHelper.java
@@ -166,6 +166,8 @@ public class HtmlHelper {
                                         .toLowerCase(Locale.ROOT)
                                         .replace(" ", "")
                                         .replace("inherit", "")
+                                        .replace("initial", "")
+                                        .replace("windowtext", "")
                                         .replace("transparent", "")
                                         .replace("!important", "");