diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 7261e7d..e846b42 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -654,8 +654,8 @@
 #error "MBEDTLS_HAVE_INT32 and MBEDTLS_HAVE_INT64 cannot be defined simultaneously"
 #endif /* MBEDTLS_HAVE_INT32 && MBEDTLS_HAVE_INT64 */
 
-#if (defined(MBEDTLS_HAVE_INT32) || define(MBEDTLS_HAVE_INT64)) && \
-    defined(MBEDTLS_HAVE_ASM
+#if ( defined(MBEDTLS_HAVE_INT32) || defined(MBEDTLS_HAVE_INT64) ) && \
+    defined(MBEDTLS_HAVE_ASM)
 #error "MBEDTLS_HAVE_INT32/MBEDTLS_HAVE_INT64 and MBEDTLS_HAVE_INT64 cannot be"
     "defined simultaneously"
 #endif /* (MBEDTLS_HAVE_INT32 || MBEDTLS_HAVE_INT64) && MBEDTLS_HAVE_ASM */