diff --git a/scripts/nightly.yaml b/scripts/nightly.yaml
index 08b3501a0..69fedc00c 100644
--- a/scripts/nightly.yaml
+++ b/scripts/nightly.yaml
@@ -1,5 +1,6 @@
 variables:
   ReleaseVersion: '4.8.15'
+  MacFlags: 'CXXFLAGS=-arch arm64 LINK_EXTRA_FLAGS=-arch arm64 SLINK_EXTRA_FLAGS=-arch arm64'
 
 stages:
 - stage: Build
@@ -10,7 +11,7 @@ stages:
     pool:
       vmImage: "macOS-latest"
     steps:
-    - script: python scripts/mk_unix_dist.py --dotnet-key=$(Build.SourcesDirectory)/resources/z3.snk
+    - script: $(MacFlags) python scripts/mk_unix_dist.py --dotnet-key=$(Build.SourcesDirectory)/resources/z3.snk
     - script: git clone https://github.com/z3prover/z3test z3test
     - script: python z3test/scripts/test_benchmarks.py build-dist/z3 z3test/regressions/smt2    
     - script: cp dist/*.zip $(Build.ArtifactStagingDirectory)/.