diff --git a/posix.mak b/posix.mak
index 33eae909424..9380eb03027 100644
--- a/posix.mak
+++ b/posix.mak
@@ -108,7 +108,7 @@ else
 endif
 
 # Set DFLAGS
-DFLAGS=-conf= -I$(DRUNTIME_PATH)/import $(DMDEXTRAFLAGS) -w -dip25 $(MODEL_FLAG) $(PIC)
+DFLAGS=-conf= -I$(DRUNTIME_PATH)/import $(DMDEXTRAFLAGS) -w -dip25 -dip1008 $(MODEL_FLAG) $(PIC)
 ifeq ($(BUILD),debug)
 	DFLAGS += -g -debug
 else
diff --git a/win32.mak b/win32.mak
index fe0b826f4a8..4668eaae64c 100644
--- a/win32.mak
+++ b/win32.mak
@@ -43,7 +43,7 @@ DRUNTIMELIB=$(DRUNTIME)\lib\druntime.lib
 
 ## Flags for dmd D compiler
 
-DFLAGS=-conf= -O -release -w -dip25 -I$(DRUNTIME)\import
+DFLAGS=-conf= -O -release -w -dip25 -dip1008 -I$(DRUNTIME)\import
 #DFLAGS=-unittest -g
 #DFLAGS=-unittest -cov -g
 
diff --git a/win64.mak b/win64.mak
index b8c3ccb5380..09f79cd1d5c 100644
--- a/win64.mak
+++ b/win64.mak
@@ -46,7 +46,7 @@ DRUNTIMELIB=$(DRUNTIME)\lib\druntime$(MODEL).lib
 
 ## Flags for dmd D compiler
 
-DFLAGS=-conf= -m$(MODEL) -O -release -w -dip25 -I$(DRUNTIME)\import
+DFLAGS=-conf= -m$(MODEL) -O -release -w -dip25 -dip1008 -I$(DRUNTIME)\import
 #DFLAGS=-m$(MODEL) -unittest -g
 #DFLAGS=-m$(MODEL) -unittest -cov -g