diff --git a/src/common/stopwatch.cpp b/src/common/stopwatch.cpp
index 21c522f5d9..47745b8085 100644
--- a/src/common/stopwatch.cpp
+++ b/src/common/stopwatch.cpp
@@ -72,7 +72,6 @@ struct PerfCounter
 #endif // __WINDOWS__
 
 const int MILLISECONDS_PER_SECOND = 1000;
-const int MICROSECONDS_PER_MILLISECOND = 1000;
 const int MICROSECONDS_PER_SECOND = 1000*1000;
 
 } // anonymous namespace
diff --git a/src/gtk/print.cpp b/src/gtk/print.cpp
index a7f75959e2..f2ea462dca 100644
--- a/src/gtk/print.cpp
+++ b/src/gtk/print.cpp
@@ -53,8 +53,7 @@ wxFORCE_LINK_THIS_MODULE(gtk_print)
 
 #include "wx/gtk/private/object.h"
 
-// Useful to convert angles from/to Rad to/from Deg.
-static const double RAD2DEG  = 180.0 / M_PI;
+// Useful to convert angles from degrees to radians.
 static const double DEG2RAD  = M_PI / 180.0;
 
 //----------------------------------------------------------------------------