diff --git a/llvm/test/LibDriver/libpath.test b/llvm/test/LibDriver/libpath.test
index 22d4f58f7f1f..2cfca2456d94 100644
--- a/llvm/test/LibDriver/libpath.test
+++ b/llvm/test/LibDriver/libpath.test
@@ -2,7 +2,7 @@ RUN: mkdir -p %T/a %T/b
 RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %T/a/foo.obj %S/Inputs/a.s
 RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %T/b/foo.obj %S/Inputs/b.s
 
-RUN: env LIB=%T/a\;%T/b llvm-lib /out:%t1.lib foo.obj
+RUN: env "LIB=%T/a;%T/b" llvm-lib /out:%t1.lib foo.obj
 RUN: llvm-nm %t1.lib | FileCheck --check-prefix=A %s
 
 RUN: llvm-lib /out:%t2.lib /libpath:%T/a /libpath:%T/b foo.obj