diff --git a/projects/clr/rocclr/compiler/lib/backends/common/codegen.cpp b/projects/clr/rocclr/compiler/lib/backends/common/codegen.cpp
index 8fe5a76ac6..4abd48a133 100644
--- a/projects/clr/rocclr/compiler/lib/backends/common/codegen.cpp
+++ b/projects/clr/rocclr/compiler/lib/backends/common/codegen.cpp
@@ -451,7 +451,7 @@ llvmCodeGen(
 
 #ifdef WITH_TARGET_HSAIL
   if (MArch == "hsail" && OptionsObj->oVariables->GPU64BitIsa) {
-    MArch = std::string("hsail-64");
+    MArch = std::string("hsail64");
   }
 #endif
 
diff --git a/projects/clr/rocclr/compiler/lib/backends/common/frontend.cpp b/projects/clr/rocclr/compiler/lib/backends/common/frontend.cpp
index 1e10b72962..3a21f1bd72 100644
--- a/projects/clr/rocclr/compiler/lib/backends/common/frontend.cpp
+++ b/projects/clr/rocclr/compiler/lib/backends/common/frontend.cpp
@@ -119,7 +119,7 @@ amdcl::OCLFrontend::getFrontendCommand(aclBinary *elf,
       systemPath << "--march=hsail -D__HSAIL__ -D__" << HSAILTargetMapping[chipName].chip_name << "__=1 ";
       break;
     case aclHSAIL64:
-      systemPath << "--march=hsail-64 -D__HSAIL__ -D__" << HSAIL64TargetMapping[chipName].chip_name << "__=1 ";
+      systemPath << "--march=hsail64 -D__HSAIL__ -D__" << HSAIL64TargetMapping[chipName].chip_name << "__=1 ";
       break;
   };
   // AMDIL and non CPU HSAIL targets get the GPU define, everything
@@ -142,7 +142,7 @@ amdcl::OCLFrontend::getFrontendCommand(aclBinary *elf,
 #ifdef WITH_TARGET_HSAIL
   if ((Is64bitMachine() && isHSAILTarget(elf->target)) ||
       (Opts->oVariables->GPU64BitIsa && (elf->target.arch_id == aclHSAIL)))
-    systemPath << " --march=hsail-64 ";
+    systemPath << " --march=hsail64 ";
 #endif
 
 #ifdef DEBUG
diff --git a/projects/clr/rocclr/compiler/lib/utils/v0_8/target_mappings.h b/projects/clr/rocclr/compiler/lib/utils/v0_8/target_mappings.h
index 27ea13de3e..41fcb7cb7b 100644
--- a/projects/clr/rocclr/compiler/lib/utils/v0_8/target_mappings.h
+++ b/projects/clr/rocclr/compiler/lib/utils/v0_8/target_mappings.h
@@ -230,7 +230,7 @@ inline const char* getArchitecture(aclDevType arch_id)
     case aclX64:
       return "x86-64";
     case aclHSAIL64:
-      return "hsail-64";
+      return "hsail64";
     case aclAMDIL64:
       return "amdil64";
     default:
diff --git a/projects/clr/rocclr/runtime/device/gpu/gpucompiler.cpp b/projects/clr/rocclr/runtime/device/gpu/gpucompiler.cpp
index d70118eb26..f51cad05cc 100644
--- a/projects/clr/rocclr/runtime/device/gpu/gpucompiler.cpp
+++ b/projects/clr/rocclr/runtime/device/gpu/gpucompiler.cpp
@@ -346,7 +346,7 @@ HSAILProgram::compileImpl(
 
     std::string arch = "hsail";
     if (dev().settings().use64BitPtr_) {
-        arch += "-64";
+        arch += "64";
     }
     target = aclGetTargetInfo(arch.c_str(),
         dev().info().name_, &errorCode);
diff --git a/projects/clr/rocclr/runtime/device/gpu/gpuprogram.cpp b/projects/clr/rocclr/runtime/device/gpu/gpuprogram.cpp
index 37fc985f45..69be513500 100644
--- a/projects/clr/rocclr/runtime/device/gpu/gpuprogram.cpp
+++ b/projects/clr/rocclr/runtime/device/gpu/gpuprogram.cpp
@@ -2335,7 +2335,7 @@ HSAILProgram::info(const char * str) {
     acl_error err;
     std::string arch = "hsail";
     if (dev().settings().use64BitPtr_) {
-      arch = "hsail-64";
+      arch = "hsail64";
     }
     info_ = aclGetTargetInfo(arch.c_str(), ( str && str[0] == '\0' ?
         dev().hwInfo()->targetName_ : str ), &err);