diff --git a/src/interfaces/ecpg/test/pg_regress_ecpg.c b/src/interfaces/ecpg/test/pg_regress_ecpg.c
index d01703e..740b566 100644
--- a/src/interfaces/ecpg/test/pg_regress_ecpg.c
+++ b/src/interfaces/ecpg/test/pg_regress_ecpg.c
@@ -159,7 +159,7 @@ ecpg_start_test(const char *testname,
 }
 
 static void
-ecpg_init(void)
+ecpg_init(int argc, char *argv[])
 {
 	/* nothing to do here at the moment */
 }