diff --git a/mlprec/mld_c_base_aggregator_mod.f90 b/mlprec/mld_c_base_aggregator_mod.f90
index ebf096c2..f06f418b 100644
--- a/mlprec/mld_c_base_aggregator_mod.f90
+++ b/mlprec/mld_c_base_aggregator_mod.f90
@@ -226,7 +226,7 @@ contains
   !!         The mapping is store in ILAGGR; for each local row index I,      
   !!         ILAGGR(I) contains the index of the aggregate to which index I
   !!         will contribute, in global numbering. 
-  !!         Many aggregation produce a binary tentative prolongators, but some
+  !!         Many aggregation produce a binary tentative prolongator, but some
   !!         do not, hence we also need the OP_PROL output.
   !!         
   !!  \param ag      The input aggregator object
diff --git a/mlprec/mld_d_base_aggregator_mod.f90 b/mlprec/mld_d_base_aggregator_mod.f90
index 93700360..2e9fdbd0 100644
--- a/mlprec/mld_d_base_aggregator_mod.f90
+++ b/mlprec/mld_d_base_aggregator_mod.f90
@@ -226,7 +226,7 @@ contains
   !!         The mapping is store in ILAGGR; for each local row index I,      
   !!         ILAGGR(I) contains the index of the aggregate to which index I
   !!         will contribute, in global numbering. 
-  !!         Many aggregation produce a binary tentative prolongators, but some
+  !!         Many aggregation produce a binary tentative prolongator, but some
   !!         do not, hence we also need the OP_PROL output.
   !!         
   !!  \param ag      The input aggregator object
diff --git a/mlprec/mld_s_base_aggregator_mod.f90 b/mlprec/mld_s_base_aggregator_mod.f90
index 20fd2c11..6aa2d3fc 100644
--- a/mlprec/mld_s_base_aggregator_mod.f90
+++ b/mlprec/mld_s_base_aggregator_mod.f90
@@ -226,7 +226,7 @@ contains
   !!         The mapping is store in ILAGGR; for each local row index I,      
   !!         ILAGGR(I) contains the index of the aggregate to which index I
   !!         will contribute, in global numbering. 
-  !!         Many aggregation produce a binary tentative prolongators, but some
+  !!         Many aggregation produce a binary tentative prolongator, but some
   !!         do not, hence we also need the OP_PROL output.
   !!         
   !!  \param ag      The input aggregator object
diff --git a/mlprec/mld_z_base_aggregator_mod.f90 b/mlprec/mld_z_base_aggregator_mod.f90
index 5f400319..a1756af9 100644
--- a/mlprec/mld_z_base_aggregator_mod.f90
+++ b/mlprec/mld_z_base_aggregator_mod.f90
@@ -226,7 +226,7 @@ contains
   !!         The mapping is store in ILAGGR; for each local row index I,      
   !!         ILAGGR(I) contains the index of the aggregate to which index I
   !!         will contribute, in global numbering. 
-  !!         Many aggregation produce a binary tentative prolongators, but some
+  !!         Many aggregation produce a binary tentative prolongator, but some
   !!         do not, hence we also need the OP_PROL output.
   !!         
   !!  \param ag      The input aggregator object