diff --git a/eng/common/native/init-os-and-arch.sh b/eng/common/native/init-os-and-arch.sh
index e693617a6c2..caa448ff030 100644
--- a/eng/common/native/init-os-and-arch.sh
+++ b/eng/common/native/init-os-and-arch.sh
@@ -35,6 +35,10 @@ fi
 case "$CPUName" in
     arm64|aarch64)
         arch=arm64
+        if [ "$(getconf LONG_BIT)" -lt 64 ]; then
+            # This is 32-bit OS running on 64-bit CPU (for example Raspberry Pi OS)
+            arch=arm
+        fi
         ;;
 
     loongarch64)
diff --git a/eng/native/configureplatform.cmake b/eng/native/configureplatform.cmake
index 2f6ca03db86..f5b5753e129 100644
--- a/eng/native/configureplatform.cmake
+++ b/eng/native/configureplatform.cmake
@@ -45,7 +45,11 @@ if(CLR_CMAKE_HOST_OS STREQUAL linux)
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL armv6 OR CMAKE_SYSTEM_PROCESSOR STREQUAL armv6l)
             set(CLR_CMAKE_HOST_UNIX_ARMV6 1)
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64 OR CMAKE_SYSTEM_PROCESSOR STREQUAL arm64)
-            set(CLR_CMAKE_HOST_UNIX_ARM64 1)
+            if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+                set(CLR_CMAKE_HOST_UNIX_ARM64 1)
+            else()
+                set(CLR_CMAKE_HOST_UNIX_ARM 1)
+            endif()
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL loongarch64)
             set(CLR_CMAKE_HOST_UNIX_LOONGARCH64 1)
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL riscv64)