1 files changed, 4 insertions, 3 deletions
diff --git a/include/al/str.h b/include/al/str.h
index 20a1c26..a572dec 100644
--- a/include/al/str.h
+++ b/include/al/str.h
@@ -79,9 +79,10 @@ static inline void al_str_to_upper(str *s)
 // Returned c_str must be free'd by the user.
 static inline char *al_str_to_c_str(str *s)
 {
-    char *c_str = (char *)al_malloc(s->length + 1);
-    al_memcpy(c_str, s->data, s->length);
-    c_str[s->length] = '\0';
+    size_t length = (size_t)s->length;
+    char *c_str = (char *)al_malloc(length + 1);
+    al_memcpy(c_str, s->data, length);
+    c_str[length] = '\0';
     return c_str;
 }