diff --git a/packages/platforms/mellanox/x86-64/x86-64-mlnx-msn3800/platform-config/r0/src/python/x86_64_mlnx_msn3800_r0/__init__.py b/packages/platforms/mellanox/x86-64/x86-64-mlnx-msn3800/platform-config/r0/src/python/x86_64_mlnx_msn3800_r0/__init__.py
index b814e9ed..c73fd131 100644
--- a/packages/platforms/mellanox/x86-64/x86-64-mlnx-msn3800/platform-config/r0/src/python/x86_64_mlnx_msn3800_r0/__init__.py
+++ b/packages/platforms/mellanox/x86-64/x86-64-mlnx-msn3800/platform-config/r0/src/python/x86_64_mlnx_msn3800_r0/__init__.py
@@ -2,7 +2,7 @@ from onl.platform.base import *
 from onl.platform.mellanox import *
 
 class OnlPlatform_x86_64_mlnx_msn3800_r0(OnlPlatformMellanox,
-                                               OnlPlatformPortConfig_32x100):
+                                               OnlPlatformPortConfig_64x100):
     PLATFORM='x86-64-mlnx-msn3800-r0'
     MODEL="MSN3800"
     SYS_OBJECT_ID=".3800.1"