diff --git a/makefile b/makefile
index 81a8fd2..bb90b5c 100644
--- a/makefile
+++ b/makefile
@@ -1,7 +1,8 @@
 SRC := $(shell find src -name "*.d") $(shell find libdparse/src -name "*.d")
 INCLUDE_PATHS := -Ilibdparse/src -Isrc
-DMD_FLAGS := -O -inline $(INCLUDE_PATHS)
-DMD_TEST_FLAGS := -unittest -g -w $(INCLUDE_PATHS)
+DMD_COMMON_FLAGS := -dip25 -w $(INCLUDE_PATHS)
+DMD_FLAGS := -O -inline $(DMD_COMMON_FLAGS)
+DMD_TEST_FLAGS := -unittest -g $(DMD_COMMON_FLAGS)
 LDC_FLAGS := -g -w -oq $(INCLUDE_PATHS)
 
 .PHONY: dmd ldc test