diff --git a/src/container.c b/src/container.c
index 1d780af..011e42f 100644
--- a/src/container.c
+++ b/src/container.c
@@ -769,7 +769,7 @@ fail:
 	return -1;
 }
 
-struct hyper_container *hyper_find_container(struct hyper_pod *pod, char *id)
+struct hyper_container *hyper_find_container(struct hyper_pod *pod, const char *id)
 {
 	struct hyper_container *c;
 
diff --git a/src/container.h b/src/container.h
index 86cf459..ec7406c 100644
--- a/src/container.h
+++ b/src/container.h
@@ -55,7 +55,7 @@ struct hyper_pod;
 
 int hyper_start_container(struct hyper_container *container,
 			  int utsns, int ipcns, struct hyper_pod *pod);
-struct hyper_container *hyper_find_container(struct hyper_pod *pod, char *id);
+struct hyper_container *hyper_find_container(struct hyper_pod *pod, const char *id);
 void hyper_cleanup_container(struct hyper_container *container, struct hyper_pod *pod);
 void hyper_cleanup_containers(struct hyper_pod *pod);
 void hyper_free_container(struct hyper_container *c);
diff --git a/src/hyper.h b/src/hyper.h
index ae7dd73..681b318 100644
--- a/src/hyper.h
+++ b/src/hyper.h
@@ -125,7 +125,6 @@ static inline int hyper_create(char *hyper_path)
 int hyper_create_file(const char *hyper_path);
 int hyper_mkdir(char *hyper_path);
 int hyper_open_serial(char *tty);
-struct hyper_container *hyper_find_container(struct hyper_pod *pod, char *id);
 int hyper_start_containers(struct hyper_pod *pod);
 void hyper_cleanup_pod(struct hyper_pod *pod);