diff --git a/grbl/gcode.c b/grbl/gcode.c
index 8290484..9d48b1c 100644
--- a/grbl/gcode.c
+++ b/grbl/gcode.c
@@ -313,9 +313,9 @@ uint8_t gc_execute_line(char *line)
           case 'R': word_bit = WORD_R; gc_block.values.r = value; break;
           case 'S': word_bit = WORD_S; gc_block.values.s = value; break;
           case 'T': word_bit = WORD_T; 
-					  if (value > MAX_TOOL_NUMBER) { FAIL(STATUS_GCODE_MAX_VALUE_EXCEEDED); }
+            if (value > MAX_TOOL_NUMBER) { FAIL(STATUS_GCODE_MAX_VALUE_EXCEEDED); }
             gc_block.values.t = int_value;
-						break;
+			break;
           case 'X': word_bit = WORD_X; gc_block.values.xyza[X_AXIS] = value; axis_words |= (1<<X_AXIS); break;
           case 'Y': word_bit = WORD_Y; gc_block.values.xyza[Y_AXIS] = value; axis_words |= (1<<Y_AXIS); break;
           case 'Z': word_bit = WORD_Z; gc_block.values.xyza[Z_AXIS] = value; axis_words |= (1<<Z_AXIS); break;
diff --git a/grbl/gcode.h b/grbl/gcode.h
index 7ecc60d..b8163f2 100644
--- a/grbl/gcode.h
+++ b/grbl/gcode.h
@@ -199,7 +199,7 @@ typedef struct {
 
 typedef struct {
   float f;         // Feed
-  float ijk[3];    // I,J,K Axis arc offsets
+  float ijk[N_AXIS];    // I,J,K Axis arc offsets
   uint8_t l;       // G10 or canned cycles parameters
   int32_t n;       // Line number
   float p;         // G10 or dwell parameters
diff --git a/grbl/grbl.h b/grbl/grbl.h
index 2f1e740..39caaff 100644
--- a/grbl/grbl.h
+++ b/grbl/grbl.h
@@ -23,7 +23,7 @@
 
 // Grbl versioning system
 #define GRBL_VERSION "1.1f"
-#define GRBL_VERSION_BUILD "20170511"
+#define GRBL_VERSION_BUILD "20171008"
 
 // Define standard libraries used by Grbl.
 #include <avr/io.h>