diff --git a/src/soc/amd/picasso/chip.c b/src/soc/amd/picasso/chip.c
index 83845416a4..d31e94a277 100644
--- a/src/soc/amd/picasso/chip.c
+++ b/src/soc/amd/picasso/chip.c
@@ -55,7 +55,7 @@ const char *soc_acpi_name(const struct device *dev)
 	return NULL;
 };
 
-struct device_operations pci_domain_ops = {
+static struct device_operations pci_domain_ops = {
 	.read_resources	  = pci_domain_read_resources,
 	.set_resources	  = pci_domain_set_resources,
 	.scan_bus	  = pci_domain_scan_bus,
diff --git a/src/soc/amd/picasso/chip.h b/src/soc/amd/picasso/chip.h
index 28d2040968..412cc087b1 100644
--- a/src/soc/amd/picasso/chip.h
+++ b/src/soc/amd/picasso/chip.h
@@ -223,6 +223,4 @@ struct soc_amd_picasso_config {
 
 typedef struct soc_amd_picasso_config config_t;
 
-extern struct device_operations pci_domain_ops;
-
 #endif /* __PICASSO_CHIP_H__ */