diff --git a/artiq/compiler/targets.py b/artiq/compiler/targets.py
index 0b9a382e3..506a52bea 100644
--- a/artiq/compiler/targets.py
+++ b/artiq/compiler/targets.py
@@ -97,6 +97,7 @@ class Target:
         llpassmgrbuilder = llvm.create_pass_manager_builder()
         llpassmgrbuilder.opt_level  = 2 # -O2
         llpassmgrbuilder.size_level = 1 # -Os
+        llpassmgrbuilder.inlining_threshold = 75 # -Os threshold
 
         llpassmgr = llvm.create_module_pass_manager()
         llpassmgrbuilder.populate(llpassmgr)