diff --git a/src/device/oprom/realmode/x86.c b/src/device/oprom/realmode/x86.c
index 0534d42db8..69ac1fe23d 100644
--- a/src/device/oprom/realmode/x86.c
+++ b/src/device/oprom/realmode/x86.c
@@ -216,7 +216,7 @@ static void setup_realmode_idt(void)
 vbe_mode_info_t mode_info;
 static int mode_info_valid;
 
-int vbe_mode_info_valid(void)
+static int vbe_mode_info_valid(void)
 {
 	return mode_info_valid;
 }
diff --git a/src/device/oprom/yabel/vbe.c b/src/device/oprom/yabel/vbe.c
index 913386458b..ec999012d2 100644
--- a/src/device/oprom/yabel/vbe.c
+++ b/src/device/oprom/yabel/vbe.c
@@ -156,7 +156,7 @@ vbe_info(vbe_info_t * info)
 
 static int mode_info_valid;
 
-int vbe_mode_info_valid(void)
+static int vbe_mode_info_valid(void)
 {
 	return mode_info_valid;
 }
diff --git a/src/drivers/xgi/common/xgi_coreboot.c b/src/drivers/xgi/common/xgi_coreboot.c
index 4db06f9b6d..f7d81c86de 100644
--- a/src/drivers/xgi/common/xgi_coreboot.c
+++ b/src/drivers/xgi/common/xgi_coreboot.c
@@ -421,7 +421,7 @@ int xgifb_modeset(struct pci_dev *pdev, struct xgifb_video_info *xgifb_info)
 	return 0;
 }
 
-int vbe_mode_info_valid(void)
+static int vbe_mode_info_valid(void)
 {
 	return xgi_vbe_valid;
 }
diff --git a/src/include/vbe.h b/src/include/vbe.h
index 70c412490b..12fac77357 100644
--- a/src/include/vbe.h
+++ b/src/include/vbe.h
@@ -111,7 +111,6 @@ typedef struct {
 #define VESA_GET_MODE_INFO	0x4f01
 #define VESA_SET_MODE		0x4f02
 
-int vbe_mode_info_valid(void);
 void vbe_set_graphics(void);
 void vbe_textmode_console(void);