1 files changed, 1 insertions, 1 deletions
diff --git a/util.h b/util.h
index ba408359a9..60e0ff4f60 100644
--- a/util.h
+++ b/util.h
@@ -36,7 +36,7 @@ void ruby_add_suffix();
 #define add_suffix ruby_add_suffix
 #endif
 
-void ruby_qsort _((void*, int, int, int (*)()));
+void ruby_qsort _((void*, const int, const int, int (*)()));
 #define qsort(b,n,s,c) ruby_qsort(b,n,s,c)
 
 void ruby_setenv _((const char*, const char*));