diff --git a/Utilities/KWIML/include/kwiml/abi.h b/Utilities/KWIML/include/kwiml/abi.h
index 1112cb0e4c61fd8573baec27b69399a7cccb91a5..0437854d3817d761fd7adc713a072659ad0f9940 100644
--- a/Utilities/KWIML/include/kwiml/abi.h
+++ b/Utilities/KWIML/include/kwiml/abi.h
@@ -409,6 +409,10 @@ suppression macro KWIML_ABI_NO_VERIFY was defined.
 #elif defined(__hppa) || defined(__hppa__)
 # define KWIML_ABI_ENDIAN_ID KWIML_ABI_ENDIAN_ID_BIG
 
+/* LoongArch64 */
+#elif defined(__loongarch64)
+# define KWIML_ABI_ENDIAN_ID KWIML_ABI_ENDIAN_ID_LITTLE
+
 /* Motorola 68k */
 #elif defined(__m68k__) || defined(M68000)
 # define KWIML_ABI_ENDIAN_ID KWIML_ABI_ENDIAN_ID_BIG