diff --git a/OpenKeychain/src/main/res/drawable/cardview_header.xml b/OpenKeychain/src/main/res/drawable/cardview_header.xml
index 9bab96ea9..ff08f9fe3 100644
--- a/OpenKeychain/src/main/res/drawable/cardview_header.xml
+++ b/OpenKeychain/src/main/res/drawable/cardview_header.xml
@@ -6,6 +6,6 @@
         android:height="1dp"
         android:width="1000dp" />
 
-    <solid android:color="@color/bg_gray" />
+    <solid android:color="?attr/colorCardViewHeaderDivider" />
 
-</shape>
\ No newline at end of file
+</shape>
diff --git a/OpenKeychain/src/main/res/values/attrs.xml b/OpenKeychain/src/main/res/values/attrs.xml
index 215b1b2fe..7865bae2e 100644
--- a/OpenKeychain/src/main/res/values/attrs.xml
+++ b/OpenKeychain/src/main/res/values/attrs.xml
@@ -10,5 +10,6 @@
         <attr name="colorTertiaryText" format="color" />
         <attr name="colorButtonRow" format="color" />
         <attr name="colorLogBackground" format="color" />
+        <attr name="colorCardViewHeaderDivider" format="color" />
     </declare-styleable>
 </resources>
diff --git a/OpenKeychain/src/main/res/values/themes.xml b/OpenKeychain/src/main/res/values/themes.xml
index 68ce63eb4..5a9721fac 100644
--- a/OpenKeychain/src/main/res/values/themes.xml
+++ b/OpenKeychain/src/main/res/values/themes.xml
@@ -16,6 +16,7 @@
         <item name="colorTertiaryText">#808080</item>
         <item name="colorButtonRow">#33cccccc</item>
         <item name="colorLogBackground">#cecbce</item>
+        <item name="colorCardViewHeaderDivider">#808080</item>
 
         <!-- remove actionbar and title, we use toolbar! -->
         <item name="windowNoTitle">true</item>
@@ -40,6 +41,7 @@
         <item name="colorTertiaryText">#808080</item>
         <item name="colorButtonRow">#33cccccc</item>
         <item name="colorLogBackground">#303030</item>
+        <item name="colorCardViewHeaderDivider">#808080</item>
 
         <!-- remove actionbar and title, we use toolbar! -->
         <item name="windowNoTitle">true</item>