diff --git a/src/soc/amd/picasso/Makefile.inc b/src/soc/amd/picasso/Makefile.inc
index 7db4719db6..de16da4bd1 100644
--- a/src/soc/amd/picasso/Makefile.inc
+++ b/src/soc/amd/picasso/Makefile.inc
@@ -54,7 +54,6 @@ endif
 smm-y += gpio.c
 smm-y += smu.c
 
-CPPFLAGS_common += -I$(src)/soc/amd/picasso
 CPPFLAGS_common += -I$(src)/soc/amd/picasso/include
 CPPFLAGS_common += -I$(src)/soc/amd/picasso/acpi
 CPPFLAGS_common += -I$(src)/vendorcode/amd/fsp/picasso
diff --git a/src/soc/amd/stoneyridge/Makefile.inc b/src/soc/amd/stoneyridge/Makefile.inc
index 7d0b86d8b5..16d1eaac7c 100644
--- a/src/soc/amd/stoneyridge/Makefile.inc
+++ b/src/soc/amd/stoneyridge/Makefile.inc
@@ -66,7 +66,6 @@ smm-$(CONFIG_DEBUG_SMI) += uart.c
 smm-y += gpio.c
 smm-y += psp.c
 
-CPPFLAGS_common += -I$(src)/soc/amd/stoneyridge
 CPPFLAGS_common += -I$(src)/soc/amd/stoneyridge/include
 CPPFLAGS_common += -I$(src)/soc/amd/stoneyridge/acpi