diff --git a/lib/fmap.c b/lib/fmap.c
index 860ff89..c5912b8 100644
--- a/lib/fmap.c
+++ b/lib/fmap.c
@@ -293,7 +293,7 @@
 }
 
 /* allocate and initialize a new fmap structure */
-struct fmap *fmap_create(uint64_t base, uint32_t size, uint8_t *name)
+struct fmap *fmap_create(uint64_t base, uint32_t size, const uint8_t *name)
 {
 	struct fmap *fmap;
 
diff --git a/lib/fmap.h b/lib/fmap.h
index ca75a17..571e486 100644
--- a/lib/fmap.h
+++ b/lib/fmap.h
@@ -148,7 +148,7 @@
  * returns NULL to indicate failure
  */
 extern struct fmap *fmap_create(uint64_t base,
-                                uint32_t size, uint8_t *name);
+                                uint32_t size, const uint8_t *name);
 
 /* free memory used by an fmap structure */
 extern void fmap_destroy(struct fmap *fmap);