diff --git a/src/SConscript b/src/SConscript
index 684b49b..62ea704 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -2,6 +2,9 @@
 # vim: set ft=python:
 # Eryn Wells <eryn@erynwells.me>
 
+import os
+import os.path
+
 files = [
     'boot.s',
     'crti.s',
@@ -9,17 +12,17 @@ files = [
     'main.cc',
 ]
 
-Replace(AS='i686-elf-as',
-        CC='clang',
-        CXX='clang++',
-        LINK='i686-elf-ld')
-Append(CFLAGS='-std=gnu99',
-       CCFLAGS='-target i686-pc-elf -ffreestanding',
-       CXXFLAGS='-std=gnu++11 -fno-exceptions -fno-rtti',
-       LINKFLAGS='-nostdlib')
+toolchain_bin = Dir(os.environ['POLKA_TOOLCHAIN']).Dir('bin')
+Replace(AS=toolchain_bin.File('i686-elf-as'),
+        CC=toolchain_bin.File('i686-elf-gcc'),
+        CXX=toolchain_bin.File('i686-elf-g++'),
+        LINK=toolchain_bin.File('i686-elf-ld'))
+Append(CCFLAGS='-ffreestanding',
+       CPPDEFINES='__polka',
+       CXXFLAGS='-fno-exceptions -fno-rtti',
+       LINKFLAGS='-nostdlib -lgcc')
 
 linker_script = File('linker.ld')
-
 kernel = Program('polka.bin', files, LINKFLAGS='-T {}'.format(linker_script.path))
 Depends(kernel, linker_script)
 Alias('kernel', kernel)
@@ -28,8 +31,8 @@ img_dir = Dir('img')
 grub_cfg = File('grub.cfg')
 image_dir = Command(img_dir, kernel, [
     Mkdir(img_dir.Dir('boot/grub')),
-    Copy(img_dir.File('boot/${SOURCE.file}'), '$SOURCE'),
-    Copy(img_dir.Dir('boot/grub'), grub_cfg)
+    Copy(os.path.join(img_dir.Dir('boot').path, '${SOURCE.file}'), '$SOURCE'),
+    Copy(img_dir.Dir('boot/grub'), grub_cfg.srcnode())
 ])
 Clean(image_dir, img_dir)
 image = Command('polka.img', image_dir, [
diff --git a/src/grub.cfg b/src/grub.cfg
index 81bf52d..2bd693d 100644
--- a/src/grub.cfg
+++ b/src/grub.cfg
@@ -1,3 +1,3 @@
-menuentry "paisley" {
-    multiboot /boot/paisley.bin
+menuentry "polka" {
+    multiboot /boot/polka.bin
 }