diff --git a/include/ptycon/ptycon.h b/include/ptycon/ptycon.h
index e6ef22f..7a84e9d 100644
--- a/include/ptycon/ptycon.h
+++ b/include/ptycon/ptycon.h
@@ -99,7 +99,7 @@ ptyc_api int  ptyc_wait_for_console	(struct ptyc_driver_ctx *);
 ptyc_api void ptyc_free_console		(struct ptyc_driver_ctx *);
 
 /* utility api */
-ptyc_api int  ptyc_main			(int, char **, char **);
+ptyc_api int  ptyc_main			(char **, char **);
 
 #ifdef __cplusplus
 }
diff --git a/project/overrides.mk b/project/overrides.mk
index e69de29..4ac3b36 100644
--- a/project/overrides.mk
+++ b/project/overrides.mk
@@ -0,0 +1 @@
+src/$(PACKAGE).o: CFLAGS_CONFIG += -Wno-unused-parameter
diff --git a/src/driver/ptyc_amain.c b/src/driver/ptyc_amain.c
index 1021048..37c2657 100644
--- a/src/driver/ptyc_amain.c
+++ b/src/driver/ptyc_amain.c
@@ -56,7 +56,7 @@ static int ptyc_exit(struct ptyc_driver_ctx * dctx, int nerrors)
 	return nerrors ? 2 : 0;
 }
 
-int ptyc_main(int argc, char ** argv, char ** envp)
+int ptyc_main(char ** argv, char ** envp)
 {
 	int				ret;
 	struct ptyc_driver_ctx *	dctx;
@@ -65,7 +65,9 @@ int ptyc_main(int argc, char ** argv, char ** envp)
 		return ret;
 
 	if ((ret = ptyc_get_driver_ctx(argv,envp,PTYC_DRIVER_FLAGS,&dctx)))
-		return (ret == PTYC_USAGE) ? !--argc : 2;
+		return (ret == PTYC_USAGE)
+			? !argv || !argv[0] || !argv[1]
+			: 2;
 
 	if (dctx->cctx->drvflags & PTYC_DRIVER_VERSION)
 		if ((ptyc_version(dctx)) < 0)
diff --git a/src/ptycon.c b/src/ptycon.c
index 000b333..1b5bf7f 100644
--- a/src/ptycon.c
+++ b/src/ptycon.c
@@ -36,7 +36,7 @@ static int ptycon_dbg_init(char ** argv)
 	return 0;
 }
 
-static int32_t ptycon_start(int argc, char ** argv, char ** envp)
+static int32_t ptycon_start(char ** argv, char ** envp)
 {
 	int32_t				status;
 	nt_runtime_data *		rtdata;
@@ -49,7 +49,6 @@ static int32_t ptycon_start(int argc, char ** argv, char ** envp)
 		return status;
 
 	if (rtdata->argv) {
-		argc = rtdata->argc;
 		argv = rtdata->argv;
 		envp = rtdata->envp;
 	}
@@ -67,7 +66,7 @@ static int32_t ptycon_start(int argc, char ** argv, char ** envp)
 
 	/* no tty session? */
 	if (!rtdata->tty_keys[0])
-		return ptyc_main(argc,argv,envp);
+		return ptyc_main(argv,envp);
 
 	/* tty */
 	ntapi->tt_aligned_block_memset(
@@ -119,7 +118,7 @@ static int32_t ptycon_start(int argc, char ** argv, char ** envp)
 			return status;
 
 	/* main */
-	return ptyc_main(argc,argv,envp);
+	return ptyc_main(argv,envp);
 }
 
 static int __stdcall ptycon_daemon_entry_point(void * hswap)
@@ -137,8 +136,7 @@ static int __stdcall ptycon_daemon_entry_point(void * hswap)
 			0,0,0)))
 		ptycon_exit(status);
 
-	ptycon_exit(ptycon_start(
-		argc,argv,envp));
+	ptycon_exit(ptycon_start(argv,envp));
 
 	return NT_STATUS_INTERNAL_ERROR;
 }