diff --git a/src/main.c b/src/main.c
--- a/src/main.c
+++ b/src/main.c
@@ -63,6 +63,8 @@
 int
 main (int argc, char *argv[])
 {
+  void bazel_runfiles_init(const char *argv0);
+  bazel_runfiles_init(argv[0]);
   {
     char *cp = getenv ("BISON_PROGRAM_NAME");
     if (cp)