diff --git a/Makefile b/Makefile
index 90d96c2ac..bbf755a66 100644
--- a/Makefile
+++ b/Makefile
@@ -52,7 +52,7 @@ INCLUDES=-I utils -I parsing -I typing -I bytecomp -I file_formats \
         -I asmcomp -I asmcomp/debug \
         -I driver -I toplevel
 
-COMPFLAGS=-strict-sequence -principal -absname -w +a-4-9-41-42-44-45-48-66 \
+COMPFLAGS=-strict-sequence -principal -absname -w +a-4-9-40-41-42-44-45-48-66 \
 	  -warn-error A \
           -bin-annot -safe-string -strict-formats $(INCLUDES)
 LINKFLAGS=
diff --git a/otherlibs/dynlink/Makefile b/otherlibs/dynlink/Makefile
index f3c031e37..2a59ad5bf 100644
--- a/otherlibs/dynlink/Makefile
+++ b/otherlibs/dynlink/Makefile
@@ -30,7 +30,7 @@ OCAMLC    = $(CAMLRUN) $(ROOTDIR)/ocamlc -nostdlib -I $(ROOTDIR)/stdlib
 OCAMLOPT  = $(CAMLRUN) $(ROOTDIR)/ocamlopt -nostdlib -I $(ROOTDIR)/stdlib
 
 # COMPFLAGS should be in sync with the toplevel Makefile's COMPFLAGS.
-COMPFLAGS=-strict-sequence -principal -absname -w +a-4-9-41-42-44-45-48-66 \
+COMPFLAGS=-strict-sequence -principal -absname -w +a-4-9-40-41-42-44-45-48-66 \
 	  -warn-error A \
           -bin-annot -safe-string -strict-formats
 ifeq "$(FLAMBDA)" "true"