diff --git a/kernel/kernel.c b/kernel/kernel.c
index 6b0bc6e..b8d96b3 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -162,6 +162,13 @@ void *memcpy(void *dest, const void *src, size_t n)
     return dest;
 }
 
+void *memmove(void *dest, const void *src, size_t n)
+{
+    memcpy(freemem, src, n);
+    memcpy(dest, freemem, n);
+    return dest;
+}
+
 size_t strlen(const char *s)
 {
     int len = 0;
diff --git a/kernel/kernel.h b/kernel/kernel.h
index 6959198..58209d3 100644
--- a/kernel/kernel.h
+++ b/kernel/kernel.h
@@ -84,6 +84,7 @@ FILE *stdin, *stdout, *stderr;
 /* string.h functions */
 void *memset(void *s, int c, size_t n);
 void *memcpy(void *dest, const void *src, size_t n);
+void *memmove(void *dest, const void *src, size_t n);
 size_t strlen(const char *s);
 int strcmp(const char *s1, const char *s2);
 int strcasecmp(const char *s1, const char *s2);