diff --git a/src/modules/Makefile b/src/modules/Makefile
index 0149c484..0c91361a 100644
--- a/src/modules/Makefile
+++ b/src/modules/Makefile
@@ -1,5 +1,15 @@
-SHOBJ_CFLAGS ?= -dynamic -fno-common -g -ggdb
-SHOBJ_LDFLAGS ?= -bundle -undefined dynamic_lookup
+
+# find the OS
+uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
+
+# Compile flags for linux / osx
+ifeq ($(uname_S),Linux)
+	SHOBJ_CFLAGS ?=  -fno-common -g -ggdb
+	SHOBJ_LDFLAGS ?= -shared
+else
+	SHOBJ_CFLAGS ?= -dynamic -fno-common -g -ggdb
+	SHOBJ_LDFLAGS ?= -bundle -undefined dynamic_lookup
+endif
 
 .SUFFIXES: .c .so .xo .o