diff --git a/calc-bit-timing/can-calc-bit-timing-v2_6_31.c b/calc-bit-timing/can-calc-bit-timing-v2_6_31.c
index 3020aa1..24e912c 100644
--- a/calc-bit-timing/can-calc-bit-timing-v2_6_31.c
+++ b/calc-bit-timing/can-calc-bit-timing-v2_6_31.c
@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include "compat.h"
+
 /*
  * imported from  v2.6.31-rc1~330^2~376
  *
diff --git a/calc-bit-timing/can-calc-bit-timing-v3_18.c b/calc-bit-timing/can-calc-bit-timing-v3_18.c
index 14ac8ea..be34f39 100644
--- a/calc-bit-timing/can-calc-bit-timing-v3_18.c
+++ b/calc-bit-timing/can-calc-bit-timing-v3_18.c
@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include "compat.h"
+
 /*
  * imported from v3.18-rc1~52^2~248^2~1
  *
diff --git a/calc-bit-timing/can-calc-bit-timing-v4_8.c b/calc-bit-timing/can-calc-bit-timing-v4_8.c
index 7b0dad7..05532e7 100644
--- a/calc-bit-timing/can-calc-bit-timing-v4_8.c
+++ b/calc-bit-timing/can-calc-bit-timing-v4_8.c
@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include "compat.h"
+
 /*
  * imported from v4.8-rc1~140^2~304^2~11
  *
diff --git a/calc-bit-timing/can-calc-bit-timing-v5_16.c b/calc-bit-timing/can-calc-bit-timing-v5_16.c
index aecfdbd..2637671 100644
--- a/calc-bit-timing/can-calc-bit-timing-v5_16.c
+++ b/calc-bit-timing/can-calc-bit-timing-v5_16.c
@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include "compat.h"
+
 /*
  * imported from v5.16-rc1~159^2~104^2~13
  *
diff --git a/calc-bit-timing/can-calc-bit-timing-v5_19.c b/calc-bit-timing/can-calc-bit-timing-v5_19.c
index a1b8821..9ad05db 100644
--- a/calc-bit-timing/can-calc-bit-timing-v5_19.c
+++ b/calc-bit-timing/can-calc-bit-timing-v5_19.c
@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include "compat.h"
+
 /*
  * imported from v5.19-rc1~159^2~286^2~15
  *
diff --git a/calc-bit-timing/can-calc-bit-timing-v6_3.c b/calc-bit-timing/can-calc-bit-timing-v6_3.c
index 19e0c1e..857d44a 100644
--- a/calc-bit-timing/can-calc-bit-timing-v6_3.c
+++ b/calc-bit-timing/can-calc-bit-timing-v6_3.c
@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include "compat.h"
+
 /*
  * imported from v6.3-rc1~162^2~124^2^2~1
  *