diff --git a/Firmware/Marlin.h b/Firmware/Marlin.h
index deb80b963..076ca367a 100755
--- a/Firmware/Marlin.h
+++ b/Firmware/Marlin.h
@@ -232,8 +232,6 @@ extern int extrudemultiply; // Sets extrude multiply factor (in percent) for all
 extern float extruder_multiplier[EXTRUDERS]; // reciprocal of cross-sectional area of filament (in square millimeters), stored this way to reduce computational burden in planner
 extern float current_position[NUM_AXIS] ;
 extern float destination[NUM_AXIS] ;
-extern float min_pos[3];
-extern float max_pos[3];
 extern bool axis_known_position[3];
 extern uint8_t fanSpeed; //!< Print fan speed, ranges from 0 to 255
 extern uint8_t newFanSpeed;
diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index c2d942a47..9f155d07b 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -193,8 +193,8 @@ float current_position[NUM_AXIS] = { 0.0, 0.0, 0.0, 0.0 };
 #define _z current_position[Z_AXIS]
 #define _e current_position[E_AXIS]
 
-float min_pos[3] = { X_MIN_POS, Y_MIN_POS, Z_MIN_POS };
-float max_pos[3] = { X_MAX_POS, Y_MAX_POS, Z_MAX_POS };
+static float min_pos[3] = { X_MIN_POS, Y_MIN_POS, Z_MIN_POS };
+static float max_pos[3] = { X_MAX_POS, Y_MAX_POS, Z_MAX_POS };
 bool axis_known_position[3] = {false, false, false};
 
 static float pause_position[3] = { X_PAUSE_POS, Y_PAUSE_POS, Z_PAUSE_LIFT };