diff --git a/library/x509write_crt.c b/library/x509write_crt.c
index 4c019ee..8d920f2 100644
--- a/library/x509write_crt.c
+++ b/library/x509write_crt.c
@@ -651,8 +651,8 @@
     return (int) len;
 }
 
-#define PEM_BEGIN_CRT           "-----BEGIN CERTIFICATE-----\n"
-#define PEM_END_CRT             "-----END CERTIFICATE-----\n"
+#define PEM_BEGIN_CRT           "-----BEGIN CERTIFICATE-----"
+#define PEM_END_CRT             "-----END CERTIFICATE-----"
 
 #if defined(MBEDTLS_PEM_WRITE_C)
 int mbedtls_x509write_crt_pem(mbedtls_x509write_cert *crt,