diff --git a/tests/stdlib/tos.nim b/tests/stdlib/tos.nim
index 6651a25db766a..3f62a098f7eac 100644
--- a/tests/stdlib/tos.nim
+++ b/tests/stdlib/tos.nim
@@ -549,12 +549,12 @@ block getTempDir:
       if existsEnv("TMPDIR"):
         let origTmpDir = getEnv("TMPDIR")
         putEnv("TMPDIR", "/mytmp")
-        doAssert getTempDir() == "/mytmp/"
+        doAssert getTempDir() == "/mytmp"
         delEnv("TMPDIR")
-        doAssert getTempDir() == "/tmp/"
+        doAssert getTempDir() == "/tmp"
         putEnv("TMPDIR", origTmpDir)
       else:
-        doAssert getTempDir() == "/tmp/"
+        doAssert getTempDir() == "/tmp"
 
 block osenv:
   block delEnv: