diff --git a/tools/test-npm.sh b/tools/test-npm.sh
index 62929ee8ccc94f..13cac39c2e754f 100755
--- a/tools/test-npm.sh
+++ b/tools/test-npm.sh
@@ -24,9 +24,9 @@ rm -rf npm-cache npm-tmp npm-prefix
 mkdir npm-cache npm-tmp npm-prefix
 
 # set some npm env varibles to point to our new temporary folders
-export npm_config_cache="npm-cache"
-export npm_config_prefix="npm-prefix"
-export npm_config_tmp="npm-tmp"
+export npm_config_cache="$(pwd)/npm-cache"
+export npm_config_prefix="$(pwd)/npm-prefix"
+export npm_config_tmp="$(pwd)/npm-tmp"
 
 # install npm devDependencies and run npm's tests