diff --git a/pcigale/analysis_modules/__init__.py b/pcigale/analysis_modules/__init__.py
index 4f9bac5332f1f4cda4e3a8095e11bc290cbc3fc0..436cf1c7d1d4a288b422d3ea4bd8ba70f4044b24 100644
--- a/pcigale/analysis_modules/__init__.py
+++ b/pcigale/analysis_modules/__init__.py
@@ -264,12 +264,11 @@ def complete_obs_table(obs_table, used_columns, filter_list, tolerance,
             if name_err not in obs_table.columns:
                 obs_table.add_column(Column(
                     name=name_err,
-                    data=np.ones(len(obs_table), dtype=float))*-9999.,
+                    data=np.full(len(obs_table), -9999.)),
                     index=obs_table.colnames.index(name)+1
                 )
             else:
-                obs_table[name_err] = np.ones(len(obs_table),
-                                              dtype=float)*-9999.
+                obs_table[name_err] = np.full(len(obs_table), -9999.)
 
         obs_table[name_err] = adjust_errors(obs_table[name],
                                             obs_table[name_err],
diff --git a/pcigale/analysis_modules/pdf_analysis/workers.py b/pcigale/analysis_modules/pdf_analysis/workers.py
index a9dedef89311b4fbe3c034bceb742c7906067c7b..719f384f643a364c0f3ea514a3e294e9c03eeee0 100644
--- a/pcigale/analysis_modules/pdf_analysis/workers.py
+++ b/pcigale/analysis_modules/pdf_analysis/workers.py
@@ -171,8 +171,8 @@ def sed(idx):
                                 gbl_params.from_index(idx))
 
     if 'sfh.age' in sed.info and sed.info['sfh.age'] > sed.info['universe.age']:
-        model_fluxes = -99. * np.ones(len(gbl_filters))
-        model_variables = -99. * np.ones(len(gbl_analysed_variables))
+        model_fluxes = np.full(len(gbl_filters), -99.)
+        model_variables = np.full(len(gbl_analysed_variables), -99.)
     else:
         model_fluxes = np.array([sed.compute_fnu(filter_) for filter_ in
                                  gbl_filters])
diff --git a/pcigale/analysis_modules/savefluxes/workers.py b/pcigale/analysis_modules/savefluxes/workers.py
index 6ca4a06f342934b6cdf463ee52360d2743df48a3..37e6297310162171ead626aa6446dda4fcdfde34 100644
--- a/pcigale/analysis_modules/savefluxes/workers.py
+++ b/pcigale/analysis_modules/savefluxes/workers.py
@@ -83,7 +83,7 @@ def fluxes(idx):
         sed.to_votable(OUT_DIR + "{}_best_model.xml".format(idx))
 
     if 'sfh.age' in sed.info and sed.info['sfh.age'] > sed.info['universe.age']:
-        model_fluxes = -99. * np.ones(len(gbl_filters))
+        model_fluxes = np.full(len(gbl_filters), -99.)
     else:
         model_fluxes = np.array([sed.compute_fnu(filter_) for filter_ in
                                  gbl_filters])