diff --git a/arch/arm/mach-imx/mx7/Kconfig b/arch/arm/mach-imx/mx7/Kconfig
index 0bb18f6..3c0208e 100644
--- a/arch/arm/mach-imx/mx7/Kconfig
+++ b/arch/arm/mach-imx/mx7/Kconfig
@@ -24,14 +24,6 @@
 	depends on SPL
 	default 0x00912000
 
-config OPTEE_TZDRAM_SIZE
-	hex "Amount of Trust-Zone RAM for the OPTEE image"
-	default 0x0000000
-	depends on OPTEE_LIB
-	help
-	  The size of pre-allocated Trust Zone DRAM to allocate for the OPTEE
-	  runtime.
-
 choice
 	prompt "MX7 board select"
 	optional
diff --git a/lib/optee/Kconfig b/lib/optee/Kconfig
index 517136a..e6834d4 100644
--- a/lib/optee/Kconfig
+++ b/lib/optee/Kconfig
@@ -11,6 +11,14 @@
 	  This option enable the OPTEE specific checks done before booting
 	  an OPTEE image created with mkimage
 
+config OPTEE_TZDRAM_SIZE
+	hex "Amount of Trust-Zone RAM for the OPTEE image"
+	default 0x0000000
+	depends on OPTEE_LIB
+	help
+	  The size of pre-allocated Trust Zone DRAM to allocate for the OPTEE
+	  runtime.
+
 config BOOTM_OPTEE
 	bool "Support OPTEE bootm command"
 	select BOOTM_LINUX