diff -ruN spack-src/CMakeLists.txt spack-src-patched/CMakeLists.txt
--- spack-src/CMakeLists.txt	2023-05-18 14:18:00.897162488 -0400
+++ spack-src-patched/CMakeLists.txt	2023-05-18 14:20:09.532413649 -0400
@@ -495,7 +495,7 @@
     if("${Legion_HIP_ARCH}" STREQUAL "")
       set(HIP_GENCODE "")
     else()
-      set(HIP_GENCODE "--offload-target=${Legion_HIP_ARCH}")
+      set(HIP_GENCODE "--offload-arch=${Legion_HIP_ARCH}")
     endif()
   endif()
 
diff -ruN spack-src/runtime/runtime.mk spack-src-patched/runtime/runtime.mk
--- spack-src/runtime/runtime.mk	2023-05-18 14:18:00.969164248 -0400
+++ spack-src-patched/runtime/runtime.mk	2023-05-18 14:20:51.317470176 -0400
@@ -499,7 +499,7 @@
       HIPCC_FLAGS	+= -O2
     endif
     ifneq ($(strip $(HIP_ARCH)),)
-      HIPCC_FLAGS	+= --offload-target=$(HIP_ARCH)
+      HIPCC_FLAGS	+= --offload-arch=$(HIP_ARCH)
     endif
     LEGION_LD_FLAGS	+= -lm -L$(HIP_PATH)/lib -lamdhip64
   else ifeq ($(strip $(HIP_TARGET)),CUDA)