diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
index 95d705fe3..86b7515f7 100644
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -2522,7 +2522,7 @@
     'workernames' : ["minipc-ryzen-win"],
     'builddir': "flang-x86_64-windows",
     'factory' : UnifiedTreeBuilder.getCmakeWithNinjaBuildFactory(
-                    depends_on_projects=['llvm','mlir','clang','flang'],
+                    depends_on_projects=['llvm','mlir','clang','flang','flang-rt'],
                     checks=['check-flang'],
                     install_dir="flang.install",
                     extra_configure_args=[
diff --git a/zorg/buildbot/process/factory.py b/zorg/buildbot/process/factory.py
index a2ac70ca8..6bb23a08c 100644
--- a/zorg/buildbot/process/factory.py
+++ b/zorg/buildbot/process/factory.py
@@ -7,6 +7,7 @@
 
 _all_runtimes = frozenset([
     "compiler-rt",
+    "flang-rt",
     "libc",
     "libcxx",
     "libcxxabi",