diff --git a/contrib/bc/src/main.c b/contrib/bc/src/main.c
index e4a1f7399bb..da4c2715602 100644
--- a/contrib/bc/src/main.c
+++ b/contrib/bc/src/main.c
@@ -54,7 +54,7 @@
 #include <dc.h>
 
 int
-main(int argc, char* argv[])
+main(int argc, const char* argv[])
 {
 	BcStatus s;
 	char* name;