diff --git a/src/util/00-mesa-defaults.conf b/src/util/00-mesa-defaults.conf
index 8abc50c9f26..f5405a0da84 100644
--- a/src/util/00-mesa-defaults.conf
+++ b/src/util/00-mesa-defaults.conf
@@ -349,6 +349,9 @@ TODO: document the other workarounds.
         <application name="startplasma" executable="startplasma">
             <option name="adaptive_sync" value="false" />
         </application>
+        <application name="sddm-greeter" executable="sddm-greeter">
+            <option name="adaptive_sync" value="false" />
+        </application>
         <application name="krunner" executable="krunner">
             <option name="adaptive_sync" value="false" />
         </application>