diff --git a/tt_npe/cpp/include/npeChart.hpp b/tt_npe/cpp/include/npeChart.hpp
index 0828ea5..472791d 100644
--- a/tt_npe/cpp/include/npeChart.hpp
+++ b/tt_npe/cpp/include/npeChart.hpp
@@ -1,3 +1,6 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: © 2025 Tenstorrent AI ULC
+
 #include <fmt/core.h>
 #include <concepts>
 
diff --git a/tt_npe/cpp/src/npeStats.cpp b/tt_npe/cpp/src/npeStats.cpp
index aad4683..8f5bd2d 100644
--- a/tt_npe/cpp/src/npeStats.cpp
+++ b/tt_npe/cpp/src/npeStats.cpp
@@ -1,3 +1,6 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: © 2025 Tenstorrent AI ULC
+
 #include "npeStats.hpp"
 
 #include <fstream>
diff --git a/tt_npe/scripts/add_license.sh b/tt_npe/scripts/add_license.sh
old mode 100644
new mode 100755
index 0d936d9..d5ef4a8
--- a/tt_npe/scripts/add_license.sh
+++ b/tt_npe/scripts/add_license.sh
@@ -1,12 +1,12 @@
 read -r -d '' LICTEXT << 'END'
-# SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: © 2025 Tenstorrent AI ULC
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: © 2025 Tenstorrent AI ULC
 END
 
-for f in `find -name '*.*py'`; do
+for f in $@; do
 	printf "$LICTEXT\n\n" > tmp
 	cat $f          >> tmp
 	echo $f
-	#diff tmp $f
+	diff tmp $f
 	mv tmp $f
 done