diff --git a/common/globalvar.c b/common/globalvar.c
index 32ca6a2..1b3082a 100644
--- a/common/globalvar.c
+++ b/common/globalvar.c
@@ -410,7 +410,7 @@
 	struct param_d *param;
 
 	param = dev_add_param(&global_device, name, globalvar_simple_set, NULL,
-			      0);
+			      PARAM_GLOBALVAR_UNQUALIFIED);
 	if (IS_ERR(param)) {
 		if (PTR_ERR(param) != -EEXIST)
 			return PTR_ERR(param);
@@ -424,9 +424,30 @@
 	return 0;
 }
 
+static int globalvar_remove_unqualified(const char *name)
+{
+	struct param_d *p;
+
+	p = get_param_by_name(&global_device, name);
+	if (!p)
+		return 0;
+
+	if (!(p->flags & PARAM_GLOBALVAR_UNQUALIFIED))
+		return -EEXIST;
+
+	dev_remove_param(p);
+
+	return 0;
+}
+
 int globalvar_add_simple_string(const char *name, char **value)
 {
 	struct param_d *p;
+	int ret;
+
+	ret = globalvar_remove_unqualified(name);
+	if (ret)
+		return ret;
 
 	p = dev_add_param_string(&global_device, name, NULL, NULL,
 		value, NULL);
@@ -443,6 +464,11 @@
 			     const char *format)
 {
 	struct param_d *p;
+	int ret;
+
+	ret = globalvar_remove_unqualified(name);
+	if (ret)
+		return ret;
 
 	p = dev_add_param_int(&global_device, name, NULL, NULL,
 		value, format, NULL);
@@ -458,6 +484,11 @@
 int globalvar_add_simple_bool(const char *name, int *value)
 {
 	struct param_d *p;
+	int ret;
+
+	ret = globalvar_remove_unqualified(name);
+	if (ret)
+		return ret;
 
 	p = dev_add_param_bool(&global_device, name, NULL, NULL,
 		value, NULL);
@@ -474,6 +505,11 @@
 			      const char * const *names, int max)
 {
 	struct param_d *p;
+	int ret;
+
+	ret = globalvar_remove_unqualified(name);
+	if (ret)
+		return ret;
 
 	p = dev_add_param_enum(&global_device, name, NULL, NULL,
 		value, names, max, NULL);
@@ -503,6 +539,11 @@
 int globalvar_add_simple_ip(const char *name, IPaddr_t *ip)
 {
 	struct param_d *p;
+	int ret;
+
+	ret = globalvar_remove_unqualified(name);
+	if (ret)
+		return ret;
 
 	p = dev_add_param_ip(&global_device, name, NULL, NULL,
 		ip, NULL);
diff --git a/include/param.h b/include/param.h
index 5eed97e..91f8aa3 100644
--- a/include/param.h
+++ b/include/param.h
@@ -6,6 +6,7 @@
 #include <linux/list.h>
 
 #define PARAM_FLAG_RO	(1 << 0)
+#define PARAM_GLOBALVAR_UNQUALIFIED	(1 << 1)
 
 struct device_d;
 typedef uint32_t          IPaddr_t;