diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -181,7 +181,7 @@
                     ],
                     extra_configure_args=[
                         "-DLLVM_TARGETS_TO_BUILD=ARM",
-                        "-DTARGET_TRIPLE=armv7-unknown-linux-gnueabihf",
+                        "-DTOOLCHAIN_TARGET_TRIPLE=armv7-unknown-linux-gnueabihf",
                         "-DDEFAULT_SYSROOT=C:/buildbot/.arm-ubuntu",
                         "-DZLIB_ROOT=C:/buildbot/.zlib-win32",
                         "-DLLVM_LIT_ARGS=-v -vv --threads=32",
@@ -220,7 +220,7 @@
                     ],
                     extra_configure_args=[
                         "-DLLVM_TARGETS_TO_BUILD=AArch64",
-                        "-DTARGET_TRIPLE=aarch64-unknown-linux-gnu",
+                        "-DTOOLCHAIN_TARGET_TRIPLE=aarch64-unknown-linux-gnu",
                         "-DDEFAULT_SYSROOT=C:/buildbot/.aarch64-ubuntu",
                         "-DZLIB_ROOT=C:/buildbot/.zlib-win32",
                         "-DLLVM_LIT_ARGS=-v -vv --threads=32",
diff --git a/buildbot/osuosl/master/config/release_builders.py b/buildbot/osuosl/master/config/release_builders.py
--- a/buildbot/osuosl/master/config/release_builders.py
+++ b/buildbot/osuosl/master/config/release_builders.py
@@ -126,7 +126,7 @@
                     ],
                     extra_configure_args=[
                         "-DLLVM_TARGETS_TO_BUILD=ARM",
-                        "-DTARGET_TRIPLE=armv7-unknown-linux-gnueabihf",
+                        "-DTOOLCHAIN_TARGET_TRIPLE=armv7-unknown-linux-gnueabihf",
                         "-DDEFAULT_SYSROOT=C:/buildbot/.arm-ubuntu",
                         "-DZLIB_ROOT=C:/buildbot/.zlib-win32",
                         "-DLLVM_LIT_ARGS=-v -vv --threads=32",
@@ -165,7 +165,7 @@
                     ],
                     extra_configure_args=[
                         "-DLLVM_TARGETS_TO_BUILD=AArch64",
-                        "-DTARGET_TRIPLE=aarch64-unknown-linux-gnu",
+                        "-DTOOLCHAIN_TARGET_TRIPLE=aarch64-unknown-linux-gnu",
                         "-DDEFAULT_SYSROOT=C:/buildbot/.aarch64-ubuntu",
                         "-DZLIB_ROOT=C:/buildbot/.zlib-win32",
                         "-DLLVM_LIT_ARGS=-v -vv --threads=32",