diff --git a/test/Makefile.tests b/test/Makefile.tests
index c597de47fab..b46b96da360 100644
--- a/test/Makefile.tests
+++ b/test/Makefile.tests
@@ -39,7 +39,7 @@ LCXXFLAGS += -O2 -Wall
 LLCFLAGS =
 FAILURE  = $(LLVM_SRC_ROOT)/test/Failure.sh
 TESTRUNR = @echo Running test: $<; \
-             PATH=$(LLVMTOOLCURRENT):$(LLVM_SRC_ROOT)/test/Scripts:$(PATH) \
+             PATH="$(LLVMTOOLCURRENT):$(LLVM_SRC_ROOT)/test/Scripts:$(PATH)" \
                   $(LLVM_SRC_ROOT)/test/TestRunner.sh
 
 LLCLIBS := $(LLCLIBS) -lm