diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index fe86c1e..8495ef2 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -150,6 +150,46 @@
 #error "MBEDTLS_GCM_C defined, but not all prerequisites"
 #endif
 
+#if defined(MBEDTLS_ECP_ALT_INIT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_ALT_INIT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_ALT_DEINIT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_ALT_DEINIT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_RANDOMIZE_JAC_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_ADD_MIXED_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_ADD_MIXED_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_DOUBLE_JAC_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_NORMALIZE_JAC_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_RANDOMIZE_MXZ_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_FUNCTION_ALT)
+#error "MBEDTLS_ECP_NORMALIZE_MXZ_ALT defined, but not all prerequisites"
+#endif
+
 #if defined(MBEDTLS_HAVEGE_C) && !defined(MBEDTLS_TIMING_C)
 #error "MBEDTLS_HAVEGE_C defined, but not all prerequisites"
 #endif