diff --git a/linux/linux-ext-rtai.mk b/linux/linux-ext-rtai.mk
index a54230d321..150f9e8979 100644
--- a/linux/linux-ext-rtai.mk
+++ b/linux/linux-ext-rtai.mk
@@ -42,6 +42,6 @@ define RTAI_PREPARE_KERNEL
 endef
 endif
 
-LINUX_POST_PATCH_HOOKS += RTAI_PREPARE_KERNEL
+LINUX_PRE_PATCH_HOOKS += RTAI_PREPARE_KERNEL
 
 endif #BR2_LINUX_EXT_RTAI
diff --git a/linux/linux-ext-xenomai.mk b/linux/linux-ext-xenomai.mk
index e855deddf8..9b6772e238 100644
--- a/linux/linux-ext-xenomai.mk
+++ b/linux/linux-ext-xenomai.mk
@@ -25,6 +25,6 @@ define XENOMAI_PREPARE_KERNEL
 		--verbose
 endef
 
-LINUX_POST_EXTRACT_HOOKS += XENOMAI_PREPARE_KERNEL
+LINUX_PRE_PATCH_HOOKS += XENOMAI_PREPARE_KERNEL
 
 endif #BR2_LINUX_EXT_XENOMAI