diff --git a/src/interpreter.jl b/src/interpreter.jl
index a9db2a18..101eb17b 100644
--- a/src/interpreter.jl
+++ b/src/interpreter.jl
@@ -53,7 +53,12 @@ import .CC: InferenceParams, OptimizationParams, get_world_counter,
 using Base: @invoke
 
 CC.InferenceParams(interp::CthulhuInterpreter) = InferenceParams(interp.native)
+@static if VERSION ≥ v"1.11.0-DEV.851"
+CC.OptimizationParams(interp::CthulhuInterpreter) = OptimizationParams(interp.native;
+    preserve_local_sources=true)
+else
 CC.OptimizationParams(interp::CthulhuInterpreter) = OptimizationParams(interp.native)
+end
 CC.get_world_counter(interp::CthulhuInterpreter) = get_world_counter(interp.native)
 CC.get_inference_cache(interp::CthulhuInterpreter) = get_inference_cache(interp.native)
 
diff --git a/src/reflection.jl b/src/reflection.jl
index 6f559910..a4e03062 100644
--- a/src/reflection.jl
+++ b/src/reflection.jl
@@ -121,6 +121,10 @@ function process_const_info(interp::AbstractInterpreter, @nospecialize(thisinfo)
 
     if isnothing(result)
         return thisinfo
+    elseif (@static VERSION ≥ v"1.11.0-DEV.851" && true) && result isa CC.VolatileInferenceResult
+        # NOTE we would not hit this case since `finish!(::CthulhuInterpreter, frame::InferenceState)`
+        #      will always transform `frame.result.src` to `OptimizedSource` when frame is inferred
+        return thisinfo
     elseif (@static VERSION ≥ v"1.9-" && true) && isa(result, CC.ConcreteResult)
         linfo = result.mi
         effects = get_effects(result)