diff --git a/programs/pkey/dh_genprime.c b/programs/pkey/dh_genprime.c
index 6e0d018..a3d574c 100644
--- a/programs/pkey/dh_genprime.c
+++ b/programs/pkey/dh_genprime.c
@@ -54,18 +54,15 @@
 #if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_ENTROPY_C) ||   \
     !defined(POLARSSL_FS_IO) || !defined(POLARSSL_CTR_DRBG_C) ||     \
     !defined(POLARSSL_GENPRIME)
-int main( int argc, char *argv[] )
+int main( void )
 {
-    ((void) argc);
-    ((void) argv);
-
     polarssl_printf("POLARSSL_BIGNUM_C and/or POLARSSL_ENTROPY_C and/or "
            "POLARSSL_FS_IO and/or POLARSSL_CTR_DRBG_C and/or "
            "POLARSSL_GENPRIME not defined.\n");
     return( 0 );
 }
 #else
-int main( int argc, char *argv[] )
+int main( void )
 {
     int ret = 1;
     mpi G, P, Q;
@@ -74,9 +71,6 @@
     const char *pers = "dh_genprime";
     FILE *fout;
 
-    ((void) argc);
-    ((void) argv);
-
     mpi_init( &G ); mpi_init( &P ); mpi_init( &Q );
     entropy_init( &entropy );