diff --git a/scripts/config/conf.c b/scripts/config/conf.c
index 78c1af596..d6c921d98 100644
--- a/scripts/config/conf.c
+++ b/scripts/config/conf.c
@@ -31,12 +31,12 @@ char *defconfig_file;
 static int indent = 1;
 static int valid_stdin = 1;
 static int conf_cnt;
-static signed char line[128];
+static char line[128];
 static struct menu *rootEntry;
 
 static char nohelp_text[] = "Sorry, no help available for this option yet.\n";
 
-static void strip(signed char *str)
+static void strip(char *str)
 {
 	signed char *p = str;
 	int l;
diff --git a/scripts/config/confdata.c b/scripts/config/confdata.c
index 5a3de978d..5c9529101 100644
--- a/scripts/config/confdata.c
+++ b/scripts/config/confdata.c
@@ -23,10 +23,10 @@ const char *conf_confnames[] = {
 	NULL,
 };
 
-static char *conf_expand_value(const signed char *in)
+static char *conf_expand_value(const char *in)
 {
 	struct symbol *sym;
-	const signed char *src;
+	const char *src;
 	static char res_value[SYMBOL_MAXLENGTH];
 	char *dst, name[SYMBOL_MAXLENGTH];