diff --git a/unittests/Makefile.unittest b/unittests/Makefile.unittest
index 2a701a019d8..9a75b2c2eb8 100644
--- a/unittests/Makefile.unittest
+++ b/unittests/Makefile.unittest
@@ -37,10 +37,10 @@ TESTLIBS = -lGoogleTest -lUnitTestMain
 ifeq ($(ENABLE_SHARED), 1)
   # Add the absolute path to the dynamic library.  This is ok because
   # we'll never install unittests.
-  LD.Flags += $(RPATH) -Wl,$(LibDir)
+  LD.Flags += $(RPATH) -Wl,$(SharedLibDir)
   # Also set {DYLD,LD}_LIBRARY_PATH because OSX ignores the rpath most
   # of the time.
-  Run.Shared := $(SHLIBPATH_VAR)="$(LibDir)$${$(SHLIBPATH_VAR):+:}$$$(SHLIBPATH_VAR)"
+  Run.Shared := $(SHLIBPATH_VAR)="$(SharedLibDir)$${$(SHLIBPATH_VAR):+:}$$$(SHLIBPATH_VAR)"
 endif
 
 $(LLVMUnitTestExe): $(ObjectsO) $(ProjLibsPaths) $(LLVMLibsPaths)