diff --git a/src/commonlib/bsd/include/commonlib/bsd/metadata_hash.h b/src/commonlib/bsd/include/commonlib/bsd/metadata_hash.h
index d5e54b508e..f73700ec02 100644
--- a/src/commonlib/bsd/include/commonlib/bsd/metadata_hash.h
+++ b/src/commonlib/bsd/include/commonlib/bsd/metadata_hash.h
@@ -8,7 +8,7 @@
 
 /* This structure is embedded somewhere in the (uncompressed) bootblock. */
 struct metadata_hash_anchor {
-	uint8_t magic[8];
+	uint8_t __nonstring magic[8];
 	struct vb2_hash cbfs_hash;
 	/* NOTE: This is just reserving space. sizeof(struct vb2_hash) may change between
 	   configurations/versions and cannot be relied upon, so the FMAP hash must be placed
diff --git a/src/commonlib/include/commonlib/coreboot_tables.h b/src/commonlib/include/commonlib/coreboot_tables.h
index 87da127ef9..70c9f17209 100644
--- a/src/commonlib/include/commonlib/coreboot_tables.h
+++ b/src/commonlib/include/commonlib/coreboot_tables.h
@@ -321,7 +321,7 @@ struct lb_gpio {
 #define ACTIVE_HIGH	1
 	uint32_t value;
 #define GPIO_MAX_NAME_LENGTH 16
-	uint8_t name[GPIO_MAX_NAME_LENGTH];
+	uint8_t __nonstring name[GPIO_MAX_NAME_LENGTH];
 };
 
 struct lb_gpios {
diff --git a/src/include/cpu/intel/smm_reloc.h b/src/include/cpu/intel/smm_reloc.h
index 2b25c75705..f3fc4d29e8 100644
--- a/src/include/cpu/intel/smm_reloc.h
+++ b/src/include/cpu/intel/smm_reloc.h
@@ -28,7 +28,7 @@ struct smm_relocation_params {
 extern struct smm_relocation_params smm_reloc_params;
 
 struct ied_header {
-	char signature[10];
+	char __nonstring signature[10];
 	u32 size;
 	u8 reserved[34];
 } __packed;
diff --git a/src/include/edid.h b/src/include/edid.h
index b2d6aa2cab..cd8df7e3ed 100644
--- a/src/include/edid.h
+++ b/src/include/edid.h
@@ -82,8 +82,8 @@ struct edid {
 	u32 bytes_per_line;
 
 	int hdmi_monitor_detected;
-	char ascii_string[EDID_ASCII_STRING_LENGTH + 1];
-	char manufacturer_name[3 + 1];
+	char __nonstring ascii_string[EDID_ASCII_STRING_LENGTH + 1];
+	char __nonstring manufacturer_name[3 + 1];
 };
 
 enum edid_status {
diff --git a/src/northbridge/intel/gm45/gm45.h b/src/northbridge/intel/gm45/gm45.h
index f68bfdee7a..90ab570524 100644
--- a/src/northbridge/intel/gm45/gm45.h
+++ b/src/northbridge/intel/gm45/gm45.h
@@ -441,7 +441,7 @@ void mb_pre_raminit_setup(sysinfo_t *); /* optional */
 void mb_post_raminit_setup(void); /* optional */
 
 struct blc_pwm_t {
-	char ascii_string[13];
+	char __nonstring ascii_string[13];
 	int pwm_freq; /* In Hz */
 };
 int get_blc_values(const struct blc_pwm_t **entries);