diff --git a/src/common/cmdline.cpp b/src/common/cmdline.cpp
index d32958fb93..4abba86ee8 100644
--- a/src/common/cmdline.cpp
+++ b/src/common/cmdline.cpp
@@ -106,8 +106,7 @@ struct wxCmdLineOption
         type = typ;
         flags = fl;
 
-        m_hasVal = false;
-        m_isNegated = false;
+        Reset();
     }
 
     // can't use union easily here, so just store all possible data fields, we
@@ -142,12 +141,19 @@ struct wxCmdLineOption
         { Check(wxCMD_LINE_VAL_DATE); m_dateVal = val; m_hasVal = true; }
 #endif // wxUSE_DATETIME
 
-    void SetHasValue(bool hasValue = true) { m_hasVal = hasValue; }
+    void SetHasValue() { m_hasVal = true; }
     bool HasValue() const { return m_hasVal; }
 
     void SetNegated() { m_isNegated = true; }
     bool IsNegated() const { return m_isNegated; }
 
+    // Reset to the initial state, called before parsing another command line.
+    void Reset()
+    {
+        m_hasVal =
+        m_isNegated = false;
+    }
+
 public:
     wxCmdLineEntryType kind;
     wxString shortName,
@@ -637,8 +643,7 @@ void wxCmdLineParser::Reset()
 {
     for ( size_t i = 0; i < m_data->m_options.GetCount(); i++ )
     {
-        wxCmdLineOption& opt = m_data->m_options[i];
-        opt.SetHasValue(false);
+        m_data->m_options[i].Reset();
     }
 }