diff --git a/csharp/ql/integration-tests/all-platforms/msbuild/test.py b/csharp/ql/integration-tests/all-platforms/msbuild/test.py
index 7471e3374e5..bff275b7b02 100644
--- a/csharp/ql/integration-tests/all-platforms/msbuild/test.py
+++ b/csharp/ql/integration-tests/all-platforms/msbuild/test.py
@@ -1,6 +1,24 @@
+import os
+
 from create_database_utils import *
 from diagnostics_test_utils import *
 
+def is_running_on_apple_silicon():
+   arch = subprocess.Popen(['sysctl', 'machdep.cpu.brand_string'], stdout=subprocess.PIPE)
+   output, errors = arch.communicate()
+   if b'apple' in output.lower():
+       return True
+   return False
+
+# if on ARM runners, remove Mono from the path, so we're using
+# dotnet restore instead of nuget.exe restore - on ARM machines
+# we run dotner msbuild (instead of the mono-provided msbuild.exe)
+# so we need to match the restore command, too.
+
+platform_name = sys.platform.lower()
+if platform_name.startswith("darwin") and is_running_on_apple_silicon():
+    os.environ["PATH"] = os.environ["PATH"].replace("/Library/Frameworks/Mono.framework/Versions/Current/Commands:", "")
+
 # force CodeQL to use MSBuild by setting `LGTM_INDEX_MSBUILD_TARGET`
 run_codeql_database_create([], db=None, lang="csharp", extra_env={ 'LGTM_INDEX_MSBUILD_TARGET': 'Build' })
 check_diagnostics()