diff --git a/qrenderdoc/Code/qprocessinfo.cpp b/qrenderdoc/Code/qprocessinfo.cpp
index c352dc912..d6b867b0e 100644
--- a/qrenderdoc/Code/qprocessinfo.cpp
+++ b/qrenderdoc/Code/qprocessinfo.cpp
@@ -26,12 +26,12 @@ struct callbackContext
   callbackContext(QProcessList &l) : list(l) {}
   QProcessList &list;
 
-  PFN_GETWINDOWTHREADPROCESSID GetWindowThreadProcessId;
-  PFN_GETWINDOW GetWindow;
-  PFN_ISWINDOWVISIBLE IsWindowVisible;
-  PFN_GETWINDOWTEXTLENGTHW GetWindowTextLengthW;
-  PFN_GETWINDOWTEXTW GetWindowTextW;
-  PFN_ENUMWINDOWS EnumWindows;
+  PFN_GETWINDOWTHREADPROCESSID GetWindowThreadProcessId = NULL;
+  PFN_GETWINDOW GetWindow = NULL;
+  PFN_ISWINDOWVISIBLE IsWindowVisible = NULL;
+  PFN_GETWINDOWTEXTLENGTHW GetWindowTextLengthW = NULL;
+  PFN_GETWINDOWTEXTW GetWindowTextW = NULL;
+  PFN_ENUMWINDOWS EnumWindows = NULL;
 };
 };
 
@@ -345,6 +345,11 @@ QProcessList QProcessInfo::enumerate()
 
 #endif
 
+QProcessInfo::QProcessInfo()
+{
+  m_pid = 0;
+}
+
 uint32_t QProcessInfo::pid() const
 {
   return m_pid;
diff --git a/qrenderdoc/Code/qprocessinfo.h b/qrenderdoc/Code/qprocessinfo.h
index af2b1341c..1ba7f47c2 100644
--- a/qrenderdoc/Code/qprocessinfo.h
+++ b/qrenderdoc/Code/qprocessinfo.h
@@ -14,6 +14,8 @@ typedef QList<QProcessInfo> QProcessList;
 class QProcessInfo
 {
 public:
+  QProcessInfo();
+
   static QProcessList enumerate();
 
   uint32_t pid() const;