8 files changed, 14 insertions, 14 deletions
diff --git a/keyboards/DeltaSplit75/DeltaSplit75.c b/keyboards/DeltaSplit75/DeltaSplit75.c
index b3d162ba9d..6a73db4cd6 100644
--- a/keyboards/DeltaSplit75/DeltaSplit75.c
+++ b/keyboards/DeltaSplit75/DeltaSplit75.c
@@ -1 +1 @@
-#include "DeltaSplit75.h"
\ No newline at end of file
+#include "deltasplit75.h"
\ No newline at end of file
diff --git a/keyboards/DeltaSplit75/DeltaSplit75.h b/keyboards/DeltaSplit75/DeltaSplit75.h
index 8931f73a5e..31480f773d 100644
--- a/keyboards/DeltaSplit75/DeltaSplit75.h
+++ b/keyboards/DeltaSplit75/DeltaSplit75.h
@@ -1,8 +1,8 @@
-#ifndef DeltaSplit75_H
-#define DeltaSplit75_H
+#ifndef deltasplit75_H
+#define deltasplit75_H
 
-#ifdef SUBPROJECT_V2
-    #include "V2.h"
+#ifdef SUBPROJECT_v2
+    #include "v2.h"
 #endif
 #ifdef SUBPROJECT_ProtoSplit
     #include "ProtoSplit.h"
diff --git a/keyboards/DeltaSplit75/Makefile b/keyboards/DeltaSplit75/Makefile
index a231dcfae0..d1dec53302 100644
--- a/keyboards/DeltaSplit75/Makefile
+++ b/keyboards/DeltaSplit75/Makefile
@@ -1,4 +1,4 @@
-SUBPROJECT_DEFAULT = V2
+SUBPROJECT_DEFAULT = v2
 
 ifndef MAKEFILE_INCLUDED
 	include ../../Makefile
diff --git a/keyboards/DeltaSplit75/V2/V2.c b/keyboards/DeltaSplit75/V2/V2.c
index 1199257d04..ce260ce7cc 100644
--- a/keyboards/DeltaSplit75/V2/V2.c
+++ b/keyboards/DeltaSplit75/V2/V2.c
@@ -1,4 +1,4 @@
-#include "DeltaSplit75.h"
+#include "deltasplit75.h"
 
 #ifdef AUDIO_ENABLE
     float tone_startup[][2] = SONG(STARTUP_SOUND);
diff --git a/keyboards/DeltaSplit75/V2/V2.h b/keyboards/DeltaSplit75/V2/V2.h
index 84503e6b4c..97be7eb0e9 100644
--- a/keyboards/DeltaSplit75/V2/V2.h
+++ b/keyboards/DeltaSplit75/V2/V2.h
@@ -1,7 +1,7 @@
-#ifndef V2_H
-#define V2_H
+#ifndef v2_H
+#define v2_H
 
-#include "../DeltaSplit75.h"
+#include "../deltasplit75.h"
 
 //void promicro_bootloader_jmp(bool program);
 #include "quantum.h"
diff --git a/keyboards/DeltaSplit75/config.h b/keyboards/DeltaSplit75/config.h
index ea0498c504..f0d43dc3ef 100644
--- a/keyboards/DeltaSplit75/config.h
+++ b/keyboards/DeltaSplit75/config.h
@@ -24,6 +24,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     #include "RightB/config.h"
 #endif
 #ifdef SUBPROJECT_V2
-    #include "V2/config.h"
+    #include "v2/config.h"
 #endif
 #endif
diff --git a/keyboards/DeltaSplit75/keymaps/Default/config.h b/keyboards/DeltaSplit75/keymaps/Default/config.h
index 12a1402d98..56df3f1607 100644
--- a/keyboards/DeltaSplit75/keymaps/Default/config.h
+++ b/keyboards/DeltaSplit75/keymaps/Default/config.h
@@ -23,8 +23,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // #define EE_HANDS
 
 
-#ifdef SUBPROJECT_V2
-    #include "../../V2/config.h"
+#ifdef SUBPROJECT_v2
+    #include "../../v2/config.h"
 #endif
 #ifdef SUBPROJECT_ProtoSplit
     #include "../../ProtoSplit/config.h"
diff --git a/keyboards/DeltaSplit75/keymaps/Default/keymap.c b/keyboards/DeltaSplit75/keymaps/Default/keymap.c
index 85c6793a05..99707702be 100644
--- a/keyboards/DeltaSplit75/keymaps/Default/keymap.c
+++ b/keyboards/DeltaSplit75/keymaps/Default/keymap.c
@@ -1,4 +1,4 @@
-#include "DeltaSplit75.h"
+#include "deltasplit75.h"
 #include "action_layer.h"
 #include "eeconfig.h"