diff --git a/hw/xfree86/common/xf86sbusBus.h b/hw/xfree86/common/xf86sbusBus.h
index ba60d1451..f2ba931ab 100644
--- a/hw/xfree86/common/xf86sbusBus.h
+++ b/hw/xfree86/common/xf86sbusBus.h
@@ -87,8 +87,6 @@ extern _X_EXPORT void xf86SbusSetOsHwCursorCmap(sbusDevicePtr psdp, int bg,
 extern _X_EXPORT Bool xf86SbusHandleColormaps(ScreenPtr pScreen,
                                               sbusDevicePtr psdp);
 
-extern _X_EXPORT int promRootNode;
-
 extern _X_EXPORT int sparcPromInit(void);
 extern _X_EXPORT void sparcPromClose(void);
 extern _X_EXPORT char *sparcPromGetProperty(sbusPromNodePtr pnode,
diff --git a/hw/xfree86/os-support/bus/Sbus.c b/hw/xfree86/os-support/bus/Sbus.c
index a7a41b756..1173beea5 100644
--- a/hw/xfree86/os-support/bus/Sbus.c
+++ b/hw/xfree86/os-support/bus/Sbus.c
@@ -41,7 +41,7 @@
 #include "xf86sbusBus.h"
 #include "xf86Sbus.h"
 
-int promRootNode;
+static int promRootNode;
 
 static int promFd = -1;
 static int promCurrentNode;