diff --git a/build/windows/tic/tic.vcxproj b/build/windows/tic/tic.vcxproj
index 3ef4913..76230b2 100644
--- a/build/windows/tic/tic.vcxproj
+++ b/build/windows/tic/tic.vcxproj
@@ -52,6 +52,7 @@
     <ClCompile Include="..\..\..\src\ext\file_dialog.c" />
     <ClCompile Include="..\..\..\src\net.c" />
     <ClCompile Include="..\..\..\src\system.c" />
+    <ClCompile Include="..\..\..\src\tools.c" />
   </ItemGroup>
   <ItemGroup>
     <Image Include="icon.ico" />
diff --git a/build/windows/tic/tic.vcxproj.filters b/build/windows/tic/tic.vcxproj.filters
index dc1db77..e4def12 100644
--- a/build/windows/tic/tic.vcxproj.filters
+++ b/build/windows/tic/tic.vcxproj.filters
@@ -33,6 +33,9 @@
     <ClCompile Include="..\..\..\src\system.c">
       <Filter>src</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\tools.c">
+      <Filter>src</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <Image Include="icon.ico">
diff --git a/src/studio.h b/src/studio.h
index df36f7a..5c51f43 100644
--- a/src/studio.h
+++ b/src/studio.h
@@ -141,8 +141,6 @@ void showTooltip(const char* text);
 
 tic_key* getKeymap();
 
-const StudioConfig* getConfig();
-
 void setSpritePixel(tic_tile* tiles, s32 x, s32 y, u8 color);
 u8 getSpritePixel(tic_tile* tiles, s32 x, s32 y);
 
@@ -168,4 +166,5 @@ char getKeyboardText();
 bool keyWasPressed(tic_key key);
 bool anyKeyWasPressed();
 
+const StudioConfig* getConfig();
 System* getSystem();
diff --git a/src/system.c b/src/system.c
index 4a44129..1080bad 100644
--- a/src/system.c
+++ b/src/system.c
@@ -1,6 +1,9 @@
 #include "system.h"
-#include "studio.h"
 #include "net.h"
+#include "tools.h"
+
+#include <stdlib.h>
+#include <stdio.h>
 #include <SDL.h>
 
 #define STUDIO_UI_SCALE 3
diff --git a/src/tools.h b/src/tools.h
index bb1d121..6b010ca 100644
--- a/src/tools.h
+++ b/src/tools.h
@@ -51,4 +51,4 @@ bool tic_tool_parse_note(const char* noteStr, s32* note, s32* octave);
 s32 tic_tool_get_pattern_id(const tic_track* track, s32 frame, s32 channel);
 void tic_tool_set_pattern_id(tic_track* track, s32 frame, s32 channel, s32 id);
 u32 tic_tool_find_closest_color(const tic_rgb* palette, const tic_rgb* color);
-TIC80_API u32* tic_palette_blit(const tic_palette* src);
\ No newline at end of file
+u32* tic_palette_blit(const tic_palette* src);