2 files changed, 2 insertions, 2 deletions
diff --git a/array.c b/array.c
index cb4fc1c..7aec158 100644
--- a/array.c
+++ b/array.c
@@ -128,7 +128,7 @@ size_t array_length(const Array *arr) {
 	return arr->len;
 }
 
-size_t array_capacity(Array *arr) {
+size_t array_capacity(const Array *arr) {
 	return arr->count;
 }
 
diff --git a/array.h b/array.h
index e4c0669..ebfa711 100644
--- a/array.h
+++ b/array.h
@@ -93,7 +93,7 @@ bool array_remove(Array*, size_t idx);
 /** Number of elements currently stored in the array. */
 size_t array_length(const Array*);
 /** Number of elements which can be stored without enlarging the array. */
-size_t array_capacity(Array*);
+size_t array_capacity(const Array*);
 /** Remove all elements with index greater or equal to ``length``, keep allocated memory. */
 bool array_truncate(Array*, size_t length);
 /**