diff --git a/Utilities/KWIML/include/kwiml/abi.h b/Utilities/KWIML/include/kwiml/abi.h
index 5ffd542cf6..ce8a896ca6 100644
--- a/Utilities/KWIML/include/kwiml/abi.h
+++ b/Utilities/KWIML/include/kwiml/abi.h
@@ -468,7 +468,7 @@ suppression macro KWIML_ABI_NO_VERIFY was defined.
 # define KWIML_ABI_ENDIAN_ID KWIML_ABI_ENDIAN_ID_LITTLE
 
 /* RISC-V */
-#elif defined(__riscv__)
+#elif defined(__riscv) || defined(__riscv__)
 # define KWIML_ABI_ENDIAN_ID KWIML_ABI_ENDIAN_ID_LITTLE
 
 /* Unknown CPU */