diff --git a/yaml_templates/solver/SolverCeres.yaml b/yaml_templates/solver/SolverCeres.yaml
index 67c7e7ef4f7405fc3b07f6c9a605db49d3c378a0..460b38d348ad96227ae3e045b07a445a55faff8d 100644
--- a/yaml_templates/solver/SolverCeres.yaml
+++ b/yaml_templates/solver/SolverCeres.yaml
@@ -1,3 +1,5 @@
+type: "whatever"  # DOC The class name - TYPE string
+plugin: "whatever"  # DOC plugin where the class is implemented - TYPE string
 period: 0.0  # DOC Period of the solver thread. - TYPE double
 verbose: 0  # DOC Verbosity of the solver. 0: Nothing, 1: Brief report, 2: Full report. - TYPE int - OPTIONS [0, 1, 2]
 compute_cov: false  # DOC If the solver has to compute any covariance matrix block. - TYPE bool
diff --git a/yaml_templates/solver/SolverManager.yaml b/yaml_templates/solver/SolverManager.yaml
index 15968cb34ff891261c37b0c849f3e4fda7d56c68..84d7b7dbaf4aa4f31b0e0813adf991bd959c86b0 100644
--- a/yaml_templates/solver/SolverManager.yaml
+++ b/yaml_templates/solver/SolverManager.yaml
@@ -1,3 +1,5 @@
+type: "whatever"  # DOC The class name - TYPE string
+plugin: "whatever"  # DOC plugin where the class is implemented - TYPE string
 period: 0.0  # DOC Period of the solver thread. - TYPE double
 verbose: 0  # DOC Verbosity of the solver. 0: Nothing, 1: Brief report, 2: Full report. - TYPE int - OPTIONS [0, 1, 2]
 compute_cov: false  # DOC If the solver has to compute any covariance matrix block. - TYPE bool