diff --git a/doc/zephyr/known-warnings-inventory.txt b/doc/zephyr/known-warnings-inventory.txt
index d5e4ee0af4..42727dfc99 100644
--- a/doc/zephyr/known-warnings-inventory.txt
+++ b/doc/zephyr/known-warnings-inventory.txt
@@ -90,3 +90,8 @@
 #
 .*Error in declarator or parameters.*
 .*Invalid C declaration: Expected identifier in nested name.*
+
+#
+# TODO: New warnings with West v1.3 - unknown reasons.
+#
+.*Inline strong start-string without end-string.*
diff --git a/doc/zephyr/known-warnings.txt b/doc/zephyr/known-warnings.txt
index f9c3b8de65..0972840bf6 100644
--- a/doc/zephyr/known-warnings.txt
+++ b/doc/zephyr/known-warnings.txt
@@ -14,3 +14,8 @@
 #
 .*Error in declarator or parameters.*
 .*Invalid C declaration: Expected identifier in nested name.*
+
+#
+# TODO: New warnings with West v1.3 - unknown reasons.
+#
+.*Inline strong start-string without end-string.*