diff --git a/scripts/mk_unix_dist.py b/scripts/mk_unix_dist.py
index 4df68d4c7..4ec98db05 100644
--- a/scripts/mk_unix_dist.py
+++ b/scripts/mk_unix_dist.py
@@ -140,6 +140,10 @@ def mk_build_dir(path):
             opts.append('--python')
         if mk_util.IS_ARCH_ARM64:
             opts.append('--arm64=true')
+        elif HOST_IS_ARM64:
+            # Explicitly disable arm64 when cross-compiling from ARM64 host to x64;
+            # without this, mk_make.py detects the ARM64 host and adds -arch arm64 flags
+            opts.append('--arm64=false')
         if mk_util.IS_ARCH_ARM64 and LINUX_X64:
             # we are on x64 machine but build for arm64
             # so we have to do cross compiling on Linux
diff --git a/scripts/mk_util.py b/scripts/mk_util.py
index 1af384242..4ec3d5dbd 100644
--- a/scripts/mk_util.py
+++ b/scripts/mk_util.py
@@ -2756,6 +2756,11 @@ def mk_config():
             CXXFLAGS = '%s -arch arm64' % CXXFLAGS
             LDFLAGS = '%s -arch arm64' % LDFLAGS
             SLIBEXTRAFLAGS = '%s -arch arm64' % SLIBEXTRAFLAGS
+        elif IS_OSX and os.uname()[4] == 'arm64':
+            # Cross-compiling from ARM64 host to x86_64: ensure the shared library
+            # linker also targets x86_64 (LDFLAGS already contains -arch x86_64
+            # from the environment, but SLIBEXTRAFLAGS is independent)
+            SLIBEXTRAFLAGS = '%s -arch x86_64' % SLIBEXTRAFLAGS
         if IS_OSX:
             SLIBFLAGS += ' -Wl,-headerpad_max_install_names'