diff --git a/Makefile b/Makefile
index b2b5f2c..b690a5d 100644
--- a/Makefile
+++ b/Makefile
@@ -18,10 +18,10 @@ test:
 	if [ `uname` = "Darwin" ]; then $(MAKE) test_macosx; else $(MAKE) test_posix; fi
 
 macosx:
-	$(MAKE) posix "SOCC=MACOSX_DEPLOYMENT_TARGET=10.3 $(CC) -dynamiclib -single_module -undefined dynamic_lookup $(SOCFLAGS)"
+	$(MAKE) posix "SOCC= $(CC) -dynamiclib -single_module -undefined dynamic_lookup -Wl,-install_name,$(PREFIX)/lib/$(MODSO) $(SOCFLAGS)"
 
 test_macosx:
-	$(MAKE) test_posix "SOCC=MACOSX_DEPLOYMENT_TARGET=10.3 $(CC) -dynamiclib -single_module -undefined dynamic_lookup $(SOCFLAGS)"
+	$(MAKE) test_posix "SOCC= $(CC) -dynamiclib -single_module -undefined dynamic_lookup -Wl,-install_name,$(PREFIX)/lib/$(MODSO) $(SOCFLAGS)"
 
 posix: $(MODSO) test_cdecl.so