diff --git a/src/ci/docker/host-x86_64/mingw-check/Dockerfile b/src/ci/docker/host-x86_64/mingw-check/Dockerfile
index bb1941f489b..571378774be 100644
--- a/src/ci/docker/host-x86_64/mingw-check/Dockerfile
+++ b/src/ci/docker/host-x86_64/mingw-check/Dockerfile
@@ -37,6 +37,7 @@ RUN sh /scripts/sccache.sh
 COPY host-x86_64/mingw-check/reuse-requirements.txt /tmp/
 RUN pip3 install --no-deps --no-cache-dir --require-hashes -r /tmp/reuse-requirements.txt
 
+COPY host-x86_64/mingw-check/check-default-config-profiles.sh /scripts/
 COPY host-x86_64/mingw-check/validate-toolstate.sh /scripts/
 COPY host-x86_64/mingw-check/validate-error-codes.sh /scripts/
 
@@ -46,8 +47,7 @@ ENV RUN_CHECK_WITH_PARALLEL_QUERIES 1
 # We disable optimized compiler built-ins because that requires a C toolchain for the target.
 # We also skip the x86_64-unknown-linux-gnu target as it is well-tested by other jobs.
 ENV SCRIPT python3 ../x.py check --stage 0 --set build.optimized-compiler-builtins=false core alloc std --target=aarch64-unknown-linux-gnu,i686-pc-windows-msvc,i686-unknown-linux-gnu,x86_64-apple-darwin,x86_64-pc-windows-gnu,x86_64-pc-windows-msvc && \
-           # Ensure that default config profiles are not broken
-           for config_file in ../src/bootstrap/defaults/*.toml; do python3 ../x.py build --dry-run --config \"$$config_file\"; done && \
+           /scripts/check-default-config-profiles.sh && \
            python3 ../x.py check --target=i686-pc-windows-gnu --host=i686-pc-windows-gnu && \
            python3 ../x.py clippy bootstrap -Dwarnings && \
            python3 ../x.py clippy compiler library -Aclippy::all -Dclippy::correctness && \
diff --git a/src/ci/docker/host-x86_64/mingw-check/check-default-config-profiles.sh b/src/ci/docker/host-x86_64/mingw-check/check-default-config-profiles.sh
new file mode 100755
index 00000000000..d706927d6d9
--- /dev/null
+++ b/src/ci/docker/host-x86_64/mingw-check/check-default-config-profiles.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+# Runs bootstrap (in dry-run mode) with each default config profile to ensure they are not broken.
+
+set -euo pipefail
+
+config_dir="../src/bootstrap/defaults"
+
+# Loop through each configuration file in the directory
+for config_file in "$config_dir"/*.toml;
+do
+    python3 ../x.py check --config $config_file --dry-run
+done