diff --git a/scripts/specialize-patch b/scripts/specialize-patch
index e75c60c46..40563a6fa 100755
--- a/scripts/specialize-patch
+++ b/scripts/specialize-patch
@@ -148,7 +148,7 @@ function evaluate(stmnt, pattern, arg, op, result) {
   gsub("defined\\(HAVE_IB_DMA_MAP_OPS\\)",
        "(LINUX_VERSION_CODE >= KERNEL_VERSION(0, 0, 0))", stmnt)
 
-  gsub("defined\\(HAVE_IB_SG_DMA_LEN\\)",
+  gsub("HAVE_IB_SG_DMA_LEN",
        "(LINUX_VERSION_CODE < KERNEL_VERSION(5, 1, 0))", stmnt)
 
   gsub("defined(ENABLE_NPIV)", 0, stmnt)
diff --git a/scst/kernel/in-tree/Makefile.drivers.Linux-5.4.patch b/scst/kernel/in-tree/Makefile.drivers.Linux-5.4.patch
new file mode 100644
index 000000000..26831e87c
--- /dev/null
+++ b/scst/kernel/in-tree/Makefile.drivers.Linux-5.4.patch
@@ -0,0 +1,11 @@
+diff -Naur linux-5.4.6.orig/drivers/Makefile linux-5.4.6/drivers/Makefile
+--- linux-5.4.6.orig/drivers/Makefile	2019-12-21 11:05:23.000000000 +0100
++++ linux-5.4.6/drivers/Makefile	2019-12-22 17:57:42.265448215 +0100
+@@ -146,6 +146,7 @@
+ obj-$(CONFIG_VHOST_RING)	+= vhost/
+ obj-$(CONFIG_VHOST)		+= vhost/
+ obj-$(CONFIG_VLYNQ)		+= vlynq/
++obj-$(CONFIG_SCST)             += scst/
+ obj-$(CONFIG_GREYBUS)		+= greybus/
+ obj-$(CONFIG_STAGING)		+= staging/
+ obj-y				+= platform/