diff --git a/scripts/checkpatch/typedefsfile b/scripts/checkpatch/typedefsfile
index ef5109b147..6752c8d911 100644
--- a/scripts/checkpatch/typedefsfile
+++ b/scripts/checkpatch/typedefsfile
@@ -4,3 +4,4 @@ mbedtls_pk_context
 z_arch_esf_t
 pinctrl_soc_pin_t
 io_rw_32
+\b[a-zA-Z_][a-zA-Z0-9_]*TypeDef