diff --git a/org/qmckl_blas.org b/org/qmckl_blas.org
index 0869a93..72e9cb5 100644
--- a/org/qmckl_blas.org
+++ b/org/qmckl_blas.org
@@ -24,6 +24,7 @@ int main() {
 ** ~qmckl_dgemm~
 
    Matrix multiply l$C_{ij} = \beta C_{ij} + \alpha \sum_{k} A_{ik} \cdot B_{kj}$ using Fortran ~matmul~ function.
+   TODO: Add description about the external library dependence.
 
    #+NAME: qmckl_dgemm_args
    | qmckl_context | context  | in  | Global state                                 |