diff --git a/setup.py b/setup.py
index 82770496d..eea8fbe88 100644
--- a/setup.py
+++ b/setup.py
@@ -154,6 +154,7 @@ def run(self):
         version = version_override
     else:
         version = "{MAJOR}.{MINOR}.{PATCH}".format(**matches)
+    version += os.environ.get("SLANGPY_VERSION_SUFFIX", "")
     print(f"version={version}")
 
 with open("README.md", "r") as f: