diff --git a/devices/belkin-rt3200/default.nix b/devices/belkin-rt3200/default.nix
index 9e1ce90..51c73fa 100644
--- a/devices/belkin-rt3200/default.nix
+++ b/devices/belkin-rt3200/default.nix
@@ -186,6 +186,9 @@
           eraseBlockSize = "126976";
           maxLEBcount = "1024"; # guessing
         };
+        flash = {
+          eraseBlockSize = 131072;
+        };
 
         defaultOutput = "ubimage";
         # the kernel expects this to be on a 2MB boundary. U-Boot