diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index 2a056a2..30ca132 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -117,6 +117,10 @@
 	  Location in DRAM where the PSP will copy the AGESA PSP Output
 	  Block.
 
+config PSP_APOB_DRAM_SIZE
+	hex
+	default 0x10000
+
 config PSP_SHAREDMEM_BASE
 	hex
 	default 0x2011000 if VBOOT