diff --git a/include/polarssl/config.h b/include/polarssl/config.h
index 29ba54f..f00a7fc 100644
--- a/include/polarssl/config.h
+++ b/include/polarssl/config.h
@@ -2102,6 +2102,11 @@
 #error "POLARSSL_RSA_C defined, but not all prerequisites"
 #endif
 
+#if defined(POLARSSL_RSASSA_PSS_CERTIFICATES) &&                        \
+    ( !defined(POLARSSL_RSA_C) || !defined(POLARSSL_PKCS1_V21) )
+#error "POLARSSL_RSASSA_PSS_CERTIFICATES defined, but not all prerequisites"
+#endif
+
 #if defined(POLARSSL_SSL_PROTO_SSL3) && ( !defined(POLARSSL_MD5_C) ||     \
     !defined(POLARSSL_SHA1_C) )
 #error "POLARSSL_SSL_PROTO_SSL3 defined, but not all prerequisites"