diff --git a/src/evalwindow.c b/src/evalwindow.c
index 2a97adc..d632deb 100644
--- a/src/evalwindow.c
+++ b/src/evalwindow.c
@@ -1120,7 +1120,7 @@
     garray_T	ga;
     char_u	buf[50];
 
-    ga_init2(&ga, (int)sizeof(char), 70);
+    ga_init2(&ga, sizeof(char), 70);
 
     // Do this twice to handle some window layouts properly.
     for (i = 0; i < 2; ++i)