diff --git a/posix.mak b/posix.mak
index cef244ff2ff..5fdf8dc7340 100644
--- a/posix.mak
+++ b/posix.mak
@@ -121,7 +121,7 @@ endif
 
 # Set DFLAGS
 DFLAGS=
-override DFLAGS+=-conf= -I$(DRUNTIME_PATH)/import $(DMDEXTRAFLAGS) -w -de -dip25 $(MODEL_FLAG) $(PIC) -transition=complex
+override DFLAGS+=-conf= -I$(DRUNTIME_PATH)/import $(DMDEXTRAFLAGS) -w -de -dip1000 $(MODEL_FLAG) $(PIC) -transition=complex
 ifeq ($(BUILD),debug)
 override DFLAGS += -g -debug
 else
diff --git a/win32.mak b/win32.mak
index a5bb7211c1c..ea91aae4b19 100644
--- a/win32.mak
+++ b/win32.mak
@@ -41,7 +41,7 @@ DRUNTIMELIB=$(DRUNTIME)\lib\druntime.lib
 
 ## Flags for dmd D compiler
 
-DFLAGS=-conf= -O -release -w -de -dip25 -I$(DRUNTIME)\import
+DFLAGS=-conf= -O -release -w -de -dip1000 -I$(DRUNTIME)\import
 #DFLAGS=-unittest -g
 #DFLAGS=-unittest -cov -g