diff --git a/tests/testament/tester.nim b/tests/testament/tester.nim
index 0185156ec4..0764b6363c 100644
--- a/tests/testament/tester.nim
+++ b/tests/testament/tester.nim
@@ -129,7 +129,7 @@ proc callCCompiler(cmdTemplate, filename, options: string,
   let c = parseCmdLine(cmdTemplate % ["target", targetToCmd[target],
                        "options", options, "file", filename.quoteShell,
                        "filedir", filename.getFileDir()])
-  var p = startProcess(command="gcc", args=c[5.. ^1],
+  var p = startProcess(command="gcc", args=c[5 .. ^1],
                        options={poStdErrToStdOut, poUsePath})
   let outp = p.outputStream
   var x = newStringOfCap(120)