diff --git a/libraries/shared/src/SharedUtil.h b/libraries/shared/src/SharedUtil.h
index d2402bb21f..6941c74462 100644
--- a/libraries/shared/src/SharedUtil.h
+++ b/libraries/shared/src/SharedUtil.h
@@ -18,9 +18,9 @@
 #include <sys/time.h>
 #endif
 
-static const double	ZERO				= 0.0;
-static const double	ONE					= 1.0;
-static const double	ONE_HALF			= 0.5;
+static const float	ZERO				= 0.0;
+static const float	ONE					= 1.0;
+static const float	ONE_HALF			= 0.5;
 static const double	ONE_THIRD			= 0.3333333;
 static const double	PIE					= 3.14159265359;
 static const double	PI_TIMES_TWO		= 3.14159265359 * 2.0;
@@ -28,10 +28,10 @@ static const double PI_OVER_180			= 3.14159265359 / 180.0;
 static const double EPSILON				= 0.00001;	//smallish number - used as margin of error for some computations
 static const double SQUARE_ROOT_OF_2	= sqrt(2);
 static const double SQUARE_ROOT_OF_3	= sqrt(3);
-static const double METER				= 1.0;
-static const double DECIMETER			= 0.1;
-static const double CENTIMETER			= 0.01;
-static const double MILLIIMETER			= 0.001;
+static const float METER				= 1.0;
+static const float DECIMETER			= 0.1;
+static const float CENTIMETER			= 0.01;
+static const float MILLIIMETER			= 0.001;
 
 double usecTimestamp(timeval *time);
 double usecTimestampNow();