diff --git a/src/bitmsghash/Makefile b/src/bitmsghash/Makefile
index 3c9c7470..88744524 100644
--- a/src/bitmsghash/Makefile
+++ b/src/bitmsghash/Makefile
@@ -1,14 +1,19 @@
-all:
-	@echo "This compiles and tests the C PoW library, it's not necessary to run PyBitmessage"
+UNAME_S := $(shell uname -s)
+ifeq ($(UNAME_S),Darwin)
+	CCFLAGS += -I/usr/local/Cellar/openssl/1.0.2d_1/include
+	LDFLAGS += -L/usr/local/Cellar/openssl/1.0.2d_1/lib
+endif
+   	
+all: bitmsghash.so
 
 powtest:
 	./testpow.py
 
 bitmsghash.so: bitmsghash.o
-	g++ bitmsghash.o -shared -fPIC -lpthread -lcrypto -o bitmsghash.so
+	g++ bitmsghash.o -shared -fPIC -lpthread -lcrypto $(LDFLAGS) -o bitmsghash.so
 
 bitmsghash.o:
-	g++ -Wall -O3 -march=native -fPIC -c bitmsghash.cpp
+	g++ -Wall -O3 -march=native -fPIC $(CCFLAGS) -c bitmsghash.cpp
 
 clean:
 	rm -f bitmsghash.o bitmsghash.so