diff --git a/scripts/bareboxenv.c b/scripts/bareboxenv.c
index 6d6d55b..f372685 100644
--- a/scripts/bareboxenv.c
+++ b/scripts/bareboxenv.c
@@ -35,7 +35,7 @@
 
 #define debug(...)
 
-void *xmalloc(size_t size)
+static void *xmalloc(size_t size)
 {
 	void *p = NULL;
 
@@ -47,7 +47,7 @@
 	return p;
 }
 
-void *xzalloc(size_t size)
+static void *xzalloc(size_t size)
 {
 	void *p = xmalloc(size);
 	memset(p, 0, size);
@@ -57,7 +57,7 @@
 /* Find out if the last character of a string matches the one given.
  * Don't underrun the buffer if the string length is 0.
  */
-char* last_char_is(const char *s, int c)
+static char *last_char_is(const char *s, int c)
 {
 	if (s && *s) {
 		size_t sz = strlen(s) - 1;
@@ -85,7 +85,7 @@
 /* concatenate path and file name to new allocation buffer,
  * not adding '/' if path name already has '/'
  */
-char *concat_path_file(const char *path, const char *filename)
+static char *concat_path_file(const char *path, const char *filename)
 {
 	char *lc, *str;
 
@@ -107,7 +107,7 @@
  * and skipping "." and ".." directory entries
  */
 
-char *concat_subpath_file(const char *path, const char *f)
+static char *concat_subpath_file(const char *path, const char *f)
 {
 	if (f && DOT_OR_DOTDOT(f))
 		return NULL;
@@ -120,7 +120,7 @@
 #include "../lib/make_directory.c"
 #include "../common/environment.c"
 
-void usage(char *prgname)
+static void usage(char *prgname)
 {
 	printf( "Usage : %s [OPTION] DIRECTORY FILE\n"
 		"Load a barebox environment sector into a directory or\n"