diff --git a/alliance/src/druc/src/drucbath.c b/alliance/src/druc/src/drucbath.c
index 6abe2bdd..af297f16 100644
--- a/alliance/src/druc/src/drucbath.c
+++ b/alliance/src/druc/src/drucbath.c
@@ -567,7 +567,7 @@ viewrdsfig ( DrucFigureRds );
 |                             Main                            |
 |                                                             |
 \------------------------------------------------------------*/
-void main (argc , argv )
+int main (argc , argv )
      int   argc;
      char *argv[];
 {