diff --git a/src/soc/amd/cezanne/reset.c b/src/soc/amd/cezanne/reset.c
index d97f79eb20..b05c0b6c47 100644
--- a/src/soc/amd/cezanne/reset.c
+++ b/src/soc/amd/cezanne/reset.c
@@ -10,7 +10,7 @@
 /* TODO: is NCP_ERR still valid?  It appears reserved and always 0xff.  b/184281092 */
 void set_warm_reset_flag(void)
 {
-	uint8_t ncp = inw(NCP_ERR);
+	uint8_t ncp = inb(NCP_ERR);
 
 	outb(NCP_ERR, ncp | NCP_WARM_BOOT);
 }
diff --git a/src/soc/amd/picasso/reset.c b/src/soc/amd/picasso/reset.c
index aae76bf4c6..84226ea6df 100644
--- a/src/soc/amd/picasso/reset.c
+++ b/src/soc/amd/picasso/reset.c
@@ -9,7 +9,7 @@
 
 void set_warm_reset_flag(void)
 {
-	uint8_t ncp = inw(NCP_ERR);
+	uint8_t ncp = inb(NCP_ERR);
 
 	outb(NCP_ERR, ncp | NCP_WARM_BOOT);
 }