diff --git a/.github/workflows/slow_CI.yml b/.github/workflows/slow_CI.yml
index 22453d7163..05077d1180 100644
--- a/.github/workflows/slow_CI.yml
+++ b/.github/workflows/slow_CI.yml
@@ -92,3 +92,8 @@ jobs:
           # FIXME: Is it possible to run these in parallel without freezing?
           qemu-aarch64 -L /usr/aarch64-linux-gnu build/test/main
           qemu-aarch64 -L /usr/aarch64-linux-gnu build/fft_small/test/main
+
+      - if: failure()
+        name: "Print config.log"
+        run: |
+          cat config.log