diff --git a/README.md b/README.md
index 3290a56..45901dc 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ It has been written to complement grblHAL and has features such as proper keyboa
 
 ---
 
-Latest build date is 20230128, see the [changelog](changelog.md) for details.  
+Latest build date is 20230129, see the [changelog](changelog.md) for details.  
 __NOTE:__ A settings reset will be performed on an update of builds earlier than 20230125. Backup and restore of settings is recommended.  
 __IMPORTANT!__  A new setting has been introduced for ganged axes motors in build 20211121.  
 I have only bench tested this for a couple of drivers, correct function should be verified after updating by those who have more than three motors configured.  
diff --git a/changelog.md b/changelog.md
index 189f242..17d2db2 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,13 @@
 ## grblHAL changelog
 
+<a name="20230129"/>Build 20230129
+
+Core:
+
+* Fixed regression in tool change handling related to refactoring of _config.h_ in build 20230125.
+
+---
+
 <a name="20230128"/>Build 20230128
 
 Core:
diff --git a/config.h b/config.h
index 98355a0..5a505c0 100644
--- a/config.h
+++ b/config.h
@@ -204,7 +204,7 @@ the negative direction. In other words, a positive tool length offset value is s
 from the current location.
 */
 #if !defined TOOL_LENGTH_OFFSET_AXIS || defined __DOXYGEN__
-#define TOOL_LENGTH_OFFSET_AXIS 0 // Default is all axes.
+#define TOOL_LENGTH_OFFSET_AXIS -1 // Default is all axes.
 #endif
 
 /*! \def MINIMUM_JUNCTION_SPEED
diff --git a/grbl.h b/grbl.h
index b480f63..55184d5 100644
--- a/grbl.h
+++ b/grbl.h
@@ -42,7 +42,7 @@
 #else
 #define GRBL_VERSION "1.1f"
 #endif
-#define GRBL_BUILD 20230128
+#define GRBL_BUILD 20230129
 
 #define GRBL_URL "https://github.com/grblHAL"
 
diff --git a/tool_change.c b/tool_change.c
index 6a99fdf..7127f14 100644
--- a/tool_change.c
+++ b/tool_change.c
@@ -429,7 +429,7 @@ void tc_clear_tlo_reference (axes_signals_t homing_cycle)
 
         plane_t plane;
 
-#ifdef TOOL_LENGTH_OFFSET_AXIS
+#if TOOL_LENGTH_OFFSET_AXIS >= 0
         plane.axis_linear = TOOL_LENGTH_OFFSET_AXIS;
 #else
         gc_get_plane_data(&plane, gc_state.modal.plane_select);