diff --git a/arch/x86/dts/chromebook_coral.dts b/arch/x86/dts/chromebook_coral.dts
index c8cb4e21c6..66c31efb6c 100644
--- a/arch/x86/dts/chromebook_coral.dts
+++ b/arch/x86/dts/chromebook_coral.dts
@@ -10,7 +10,7 @@
 /include/ "rtc.dtsi"
 /include/ "tsc_timer.dtsi"
 
-#ifdef CONFIG_CHROMEOS_VBOOT
+#if defined(CONFIG_CHROMEOS_VBOOT) && defined(CONFIG_ROM_SIZE)
 #include "chromeos-x86.dtsi"
 #include "flashmap-x86-ro.dtsi"
 #include "flashmap-16mb-rw.dtsi"
diff --git a/arch/x86/dts/chromebook_samus.dts b/arch/x86/dts/chromebook_samus.dts
index adaeb1ea35..ad35ab2e3f 100644
--- a/arch/x86/dts/chromebook_samus.dts
+++ b/arch/x86/dts/chromebook_samus.dts
@@ -11,7 +11,7 @@
 
 #include "smbios.dtsi"
 
-#ifdef CONFIG_CHROMEOS_VBOOT
+#if defined(CONFIG_CHROMEOS_VBOOT) && defined(CONFIG_ROM_SIZE)
 #include "chromeos-x86.dtsi"
 #include "flashmap-x86-ro.dtsi"
 #include "flashmap-8mb-rw.dtsi"