diff --git a/tests/benchmarks/printfbench.cpp b/tests/benchmarks/printfbench.cpp
index 9187aa7208..147cfa1b23 100644
--- a/tests/benchmarks/printfbench.cpp
+++ b/tests/benchmarks/printfbench.cpp
@@ -38,16 +38,16 @@
 // command line
 // ----------------------------------------------------------------------------
 
-#define HELP_SWITCH              wxT("h")
-#define NUMBENCHMARK_OPTION           wxT("n")
+#define HELP_SWITCH              "h"
+#define NUMBENCHMARK_OPTION           "n"
 
 static const wxCmdLineEntryDesc g_cmdLineDesc[] =
 {
-    { wxCMD_LINE_SWITCH, HELP_SWITCH, wxT("help"),
-      wxT("displays help on the command line parameters") },
+    { wxCMD_LINE_SWITCH, HELP_SWITCH, "help",
+      "displays help on the command line parameters" },
 
-    { wxCMD_LINE_OPTION, NUMBENCHMARK_OPTION, wxT("numtest"),
-      wxT("the number of wxPrintf() calls to benchmark"), wxCMD_LINE_VAL_NUMBER },
+    { wxCMD_LINE_OPTION, NUMBENCHMARK_OPTION, "numtest",
+      "the number of wxPrintf() calls to benchmark", wxCMD_LINE_VAL_NUMBER },
 
     { wxCMD_LINE_NONE }
 };