diff --git a/rat-excludes b/rat-excludes
index 067e283662c4..d877d0e6ee37 100644
--- a/rat-excludes
+++ b/rat-excludes
@@ -145,6 +145,11 @@ psroi_pooling.cu
 multi_proposal.cc
 multi_proposal-inl.h
 
+# Incorporated third-party source files from Microsoft that carry MIT license, captured in licenses/
+modulated_deformable_convolution-inl.h
+modulated_deformable_convolution.cc
+modulated_deformable_convolution.cu
+
 # AL2 License header not at the beginning of the file
 doap.rdf
 
diff --git a/tools/license_header.py b/tools/license_header.py
index 4b94b01e21c6..c304fc43bc74 100755
--- a/tools/license_header.py
+++ b/tools/license_header.py
@@ -119,6 +119,13 @@
                # Licensed under the Boost Software License, Version 1.0
                'cmake/Modules/FindJeMalloc.cmake',
 
+               # Licensed under MIT license and contributed by Microsoft
+               'src/operator/contrib/nn/modulated_deformable_im2col.cuh',
+               'src/operator/contrib/nn/modulated_deformable_im2col.h',
+               'src/operator/contrib/modulated_deformable_convolution-inl.h',
+               'src/operator/contrib/modulated_deformable_convolution.cc',
+               'src/operator/contrib/modulated_deformable_convolution.cu',
+
                # Licensed under Apache 2.0 license and contributed by Microsoft
                'src/operator/contrib/deformable_psroi_pooling.cu',
                'src/operator/contrib/deformable_convolution.cu',