diff --git a/Makefile.in b/Makefile.in
index 247cb9c8711..03785200dc7 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -565,7 +565,7 @@ STAGEprofile_TFLAGS = $(STAGE2_TFLAGS)
 STAGEtrain_CFLAGS = $(filter-out -fchecking=1,$(STAGE3_CFLAGS))
 STAGEtrain_TFLAGS = $(filter-out -fchecking=1,$(STAGE3_TFLAGS))
 
-STAGEfeedback_CFLAGS = $(STAGE4_CFLAGS) -fprofile-use
+STAGEfeedback_CFLAGS = $(STAGE4_CFLAGS) -fprofile-use -fprofile-reproducible=parallel-runs
 STAGEfeedback_TFLAGS = $(STAGE4_TFLAGS)
 
 STAGEautoprofile_CFLAGS = $(STAGE2_CFLAGS) -g