diff --git a/Kconfig b/Kconfig
index 70efb41cc66..91170bf8d22 100644
--- a/Kconfig
+++ b/Kconfig
@@ -298,7 +298,7 @@ config SYS_MALLOC_LEN
 config SPL_SYS_MALLOC_F_LEN
 	hex "Size of malloc() pool in SPL"
 	depends on SYS_MALLOC_F && SPL
-	default 0 if !SPL_FRAMEWORK
+	default 0x0 if !SPL_FRAMEWORK
 	default 0x2800 if RCAR_GEN3
 	default 0x2000 if IMX8MQ
 	default SYS_MALLOC_F_LEN
diff --git a/common/Makefile b/common/Makefile
index c87bb2e78b3..f5c3d90f067 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -79,7 +79,7 @@ endif # CONFIG_SPL_BUILD
 obj-$(CONFIG_CROS_EC) += cros_ec.o
 obj-y += dlmalloc.o
 ifdef CONFIG_SYS_MALLOC_F
-ifneq ($(CONFIG_$(SPL_TPL_)SYS_MALLOC_F_LEN),0)
+ifneq ($(CONFIG_$(SPL_TPL_)SYS_MALLOC_F_LEN),0x0)
 obj-y += malloc_simple.o
 endif
 endif