diff --git a/rust/proc_macro.go b/rust/proc_macro.go
index 804d79f..974c096 100644
--- a/rust/proc_macro.go
+++ b/rust/proc_macro.go
@@ -75,6 +75,7 @@
 
 	srcPath, _ := srcPathFromModuleSrcs(ctx, procMacro.baseCompiler.Properties.Srcs)
 	TransformSrctoProcMacro(ctx, srcPath, deps, flags, outputFile)
+	procMacro.baseCompiler.unstrippedOutputFile = outputFile
 	return outputFile
 }