diff --git a/library/x509write_csr.c b/library/x509write_csr.c
index c93e4b4..0c3c396 100644
--- a/library/x509write_csr.c
+++ b/library/x509write_csr.c
@@ -30,13 +30,12 @@
 #include MBEDTLS_CONFIG_FILE
 #endif
 
-#include "mbedtls/error.h"
-
 #if defined(MBEDTLS_X509_CSR_WRITE_C)
 
 #include "mbedtls/x509_csr.h"
-#include "mbedtls/oid.h"
 #include "mbedtls/asn1write.h"
+#include "mbedtls/error.h"
+#include "mbedtls/oid.h"
 #include "mbedtls/platform_util.h"
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)