diff --git a/devices/belkin-rt3200/default.nix b/devices/belkin-rt3200/default.nix
index fd3c648..8755b3c 100644
--- a/devices/belkin-rt3200/default.nix
+++ b/devices/belkin-rt3200/default.nix
@@ -270,7 +270,7 @@
               minIOSize = "2048";
               logicalEraseBlockSize = "126976";
               physicalEraseBlockSize = "131072";
-              maxLEBcount = "1024"; # guessing
+              maxLEBcount = "1400"; # guessing
             };
 
             defaultOutput = "ubimage";
diff --git a/devices/openwrt-one/default.nix b/devices/openwrt-one/default.nix
index 1bc095b..ec82831 100644
--- a/devices/openwrt-one/default.nix
+++ b/devices/openwrt-one/default.nix
@@ -721,7 +721,7 @@
               minIOSize = "2048";
               logicalEraseBlockSize = "126976";
               physicalEraseBlockSize = "131072";
-              maxLEBcount = "1024"; # guessing
+              maxLEBcount = "1400"; # guessing
             };
 
             defaultOutput = "ubimage";