1 files changed, 1 insertions, 0 deletions
diff --git a/tests/tester.nim b/tests/tester.nim
index df01c8de3..1981dd066 100755
--- a/tests/tester.nim
+++ b/tests/tester.nim
@@ -123,6 +123,7 @@ proc callCompiler(cmdTemplate, filename, options: string): TSpec =
     if x =~ pegOfInterest:
       # `s` should contain the last error message
       s = x
+  close(p)
   result.msg = ""
   result.file = ""
   result.outp = ""