diff --git a/programs/pkey/gen_key.c b/programs/pkey/gen_key.c
index 26453cc955..194a5cbba6 100644
--- a/programs/pkey/gen_key.c
+++ b/programs/pkey/gen_key.c
@@ -248,7 +248,8 @@ int main(int argc, char *argv[])
     mbedtls_mpi_init(&D); mbedtls_mpi_init(&E); mbedtls_mpi_init(&DP);
     mbedtls_mpi_init(&DQ); mbedtls_mpi_init(&QP);
 #endif /* MBEDTLS_RSA_C */
-	mbedtls_entropy_init(&entropy);
+
+    mbedtls_entropy_init(&entropy);
     mbedtls_pk_init(&key);
     mbedtls_ctr_drbg_init(&ctr_drbg);
     memset(buf, 0, sizeof(buf));