diff --git a/Documentation/ProjectFile/prj/time_loop/output/t_output_extrapolation_residuals.md b/Documentation/ProjectFile/prj/time_loop/output/t_output_extrapolation_residuals.md
index 576add64edccf5d980a0ff86143dc43a7109a788..fb1ba1e2a9505684dbb9f14af06470ffdea53b15 100644
--- a/Documentation/ProjectFile/prj/time_loop/output/t_output_extrapolation_residuals.md
+++ b/Documentation/ProjectFile/prj/time_loop/output/t_output_extrapolation_residuals.md
@@ -1 +1 @@
-\ogs_missing_documentation
+Output the residuals.
diff --git a/Documentation/ProjectFile/prj/time_loop/processes/process/t_output.md b/Documentation/ProjectFile/prj/time_loop/processes/process/t_output.md
new file mode 100644
index 0000000000000000000000000000000000000000..5836184f816ff78a7565b2f91249f71dd458375d
--- /dev/null
+++ b/Documentation/ProjectFile/prj/time_loop/processes/process/t_output.md
@@ -0,0 +1,3 @@
+Deprecated config tag. Don't use the tag. Please configure your output within
+the global output section, i. e., within the xpath
+'//OpenGeoSysProject/time_loop/output'.
diff --git a/ProcessLib/CreateProcessData.cpp b/ProcessLib/CreateProcessData.cpp
index a4aa35128fab03d67ef1cec5e9634506f06bd770..fb046141487da41b01b700aaee8cc06700cdfd49 100644
--- a/ProcessLib/CreateProcessData.cpp
+++ b/ProcessLib/CreateProcessData.cpp
@@ -81,6 +81,7 @@ std::vector<std::unique_ptr<ProcessData>> createPerProcessData(
             //! \ogs_file_param{prj__time_loop__processes__process__convergence_criterion}
             pcs_config.getConfigSubtree("convergence_criterion"));
 
+        //! \ogs_file_param{prj__time_loop__processes__process__output}
         auto output = pcs_config.getConfigSubtreeOptional("output");
         if (output)
         {
diff --git a/ProcessLib/Output/CreateOutput.cpp b/ProcessLib/Output/CreateOutput.cpp
index 0526dbd8d66381d222d75d021d56bd635b628b9f..dcac793115ff1ce97255791e1211bf4e98332d59 100644
--- a/ProcessLib/Output/CreateOutput.cpp
+++ b/ProcessLib/Output/CreateOutput.cpp
@@ -96,8 +96,8 @@ std::unique_ptr<Output> createOutput(
         output_variables.insert(out_var);
     }
 
+    //! \ogs_file_param{prj__time_loop__output__output_extrapolation_residuals}
     bool const output_residuals = config.getConfigParameter<bool>(
-        //! \ogs_file_param{prj__time_loop__output__output_extrapolation_residuals}
         "output_extrapolation_residuals", false);
 
     ProcessOutput process_output{output_variables, output_residuals};