diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 2c943ac6b..1e9756841 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2013-12-22  Christopher Faylor  <me.cygwin2013@cgf.cx>
+
+	* strace.cc (strace::vsprntf): Fix potential (if unlikely) use of
+	uninitialized variable.
+
 2013-12-18  Christopher Faylor  <me.cygwin2013@cgf.cx>
 
 	* dcrt0.cc (dll_crt0_1): Remove NtSetTimerResolution.
diff --git a/winsup/cygwin/strace.cc b/winsup/cygwin/strace.cc
index 3c73a71ce..3d54c10e9 100644
--- a/winsup/cygwin/strace.cc
+++ b/winsup/cygwin/strace.cc
@@ -156,11 +156,12 @@ strace::vsprntf (char *buf, const char *func, const char *infmt, va_list ap)
       else if (__progname)
 	sys_mbstowcs(pn = progname, NT_MAX_PATH, __progname);
 
+      WCHAR empty[1] = {};
       PWCHAR p;
       if (!pn)
 	GetModuleFileNameW (NULL, pn = progname, sizeof (progname));
       if (!pn)
-	/* hmm */;
+	p = empty;
       else if ((p = wcsrchr (pn, L'\\')) != NULL)
 	p++;
       else if ((p = wcsrchr (pn, L'/')) != NULL)