diff --git a/Makefile b/Makefile
index 583465127..c0781d26d 100644
--- a/Makefile
+++ b/Makefile
@@ -82,7 +82,7 @@ all: top-all
 YOSYS_SRC := $(dir $(firstword $(MAKEFILE_LIST)))
 VPATH := $(YOSYS_SRC)
 
-CXXFLAGS := $(CXXFLAGS) -Wall -Wextra -ggdb -I. -I"$(YOSYS_SRC)" -MD -D_YOSYS_ -fPIC -I$(PREFIX)/include
+CXXFLAGS := $(CXXFLAGS) -Wall -Wextra -ggdb -I. -I"$(YOSYS_SRC)" -MD -MP -D_YOSYS_ -fPIC -I$(PREFIX)/include
 LDLIBS := $(LDLIBS) -lstdc++ -lm
 PLUGIN_LDFLAGS :=