diff --git a/src/terminal.c b/src/terminal.c
index caa4c85..1ceac3a 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -3925,7 +3925,7 @@
     static void *
 vterm_malloc(size_t size, void *data UNUSED)
 {
-    return alloc_clear((unsigned) size);
+    return alloc_clear(size);
 }
 
     static void