diff --git a/doc.zih.tu-dresden.de/docs/software/mpi_usage_error_detection.md b/doc.zih.tu-dresden.de/docs/software/mpi_usage_error_detection.md
index 825dfa6c1e536ba6827d2445dcef450b99edae59..4436bf81d0227a222efc961552b0dc85c3f4d3bf 100644
--- a/doc.zih.tu-dresden.de/docs/software/mpi_usage_error_detection.md
+++ b/doc.zih.tu-dresden.de/docs/software/mpi_usage_error_detection.md
@@ -15,7 +15,8 @@ MUST checks if your application conforms to the MPI standard and will issue warn
errors or non-portable constructs. You can apply MUST without modifying your source code, though we
suggest to add the debugging flag "-g" during compilation.
-- [MUST introduction slides]**todo** %ATTACHURL%/parallel_debugging_must.pdf
+
+{: align="left"}
### Setup and Modules