diff --git a/appveyor.yml b/appveyor.yml
index 23755cca3..356d45c68 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -26,7 +26,7 @@ build_script:
 - stack setup --no-terminal > nul
 # Appveyor has a timeout of 60 mins, building can take longer, limit the time and make sure this succeeds,
 # previous work will get cached and finish on next commit
-- bash -lc "timeout 2700 'C:\projects\postgrest\stack.exe' build -j1 --copy-bins --local-bin-path . || true"
+- bash -lc "timeout 2700 'C:\projects\postgrest\stack.exe' build -j1 --copy-bins --local-bin-path . || (($?==124))"
 
 artifacts:
 - path: postgrest.exe