diff --git a/src/pw/pw_types.F b/src/pw/pw_types.F
index 116fef90cf..808f97abf5 100644
--- a/src/pw/pw_types.F
+++ b/src/pw/pw_types.F
@@ -10,7 +10,7 @@
 !>      If parallel mode is distributed certain combination of
 !>      "in_use" and "in_space" can not be used.
 !>      For performance reasons it would be better to have the loops
-!>      over g-vectros in the gather/scatter routines in new subprograms
+!>      over g-vectors in the gather/scatter routines in new subprograms
 !>      with the actual arrays (also the addressing) in the parameter list
 !> \par History
 !>      JGH (29-Dec-2000) : Changes for parallel use
diff --git a/src/qs_block_davidson_types.F b/src/qs_block_davidson_types.F
index 6507ff35d5..afb82e6bbd 100644
--- a/src/qs_block_davidson_types.F
+++ b/src/qs_block_davidson_types.F
@@ -6,7 +6,7 @@
 !--------------------------------------------------------------------------------------------------!
 
 ! **************************************************************************************************
-!> \brief module that contains the algorithms to perform an itrative
+!> \brief module that contains the algorithms to perform an iterative
 !>         diagonalization by the block-Davidson approach
 !>         P. Blaha, et al J. Comp. Physics, 229, (2010), 453-460
 !>         \Iterative diagonalization in augmented plane wave based
diff --git a/src/qs_scf_block_davidson.F b/src/qs_scf_block_davidson.F
index 2bcd1f3a55..0e22e0fbd7 100644
--- a/src/qs_scf_block_davidson.F
+++ b/src/qs_scf_block_davidson.F
@@ -6,7 +6,7 @@
 !--------------------------------------------------------------------------------------------------!
 
 ! **************************************************************************************************
-!> \brief module that contains the algorithms to perform an itrative
+!> \brief module that contains the algorithms to perform an iterative
 !>         diagonalization by the block-Davidson approach
 !>         P. Blaha, et al J. Comp. Physics, 229, (2010), 453-460
 !>         Iterative diagonalization in augmented plane wave based
diff --git a/src/qs_scf_lanczos.F b/src/qs_scf_lanczos.F
index 4fad9e2baf..e15d7cea68 100644
--- a/src/qs_scf_lanczos.F
+++ b/src/qs_scf_lanczos.F
@@ -6,7 +6,7 @@
 !--------------------------------------------------------------------------------------------------!
 
 ! **************************************************************************************************
-!> \brief module that contains the algorithms to perform an itrative
+!> \brief module that contains the algorithms to perform an iterative
 !>         diagonalization by the block-Lanczos approach
 !> \par History
 !>      05.2009 created [MI]
@@ -52,7 +52,7 @@ CONTAINS
 ! **************************************************************************************************
 
 ! **************************************************************************************************
-!> \brief  allocates matrices and vectros used in the construction of
+!> \brief  allocates matrices and vectors used in the construction of
 !>        the krylov space and for the lanczos refinement
 !> \param krylov_space ...
 !> \param scf_control ...
@@ -125,7 +125,7 @@ CONTAINS
          CALL cp_fm_struct_release(fm_struct_tmp)
 
          ! NOTE: the following matrices are small and could be defined
-!           as standard array rather than istributed fm
+!           as standard array rather than distributed fm
          NULLIFY (fm_struct_tmp)
          CALL cp_fm_struct_create(fm_struct_tmp, nrow_global=nblock, ncol_global=nblock, &
                                   para_env=mo_coeff%matrix_struct%para_env, &
@@ -164,7 +164,7 @@ CONTAINS
    END SUBROUTINE krylov_space_allocate
 
 ! **************************************************************************************************
-!> \brief lanczos refinement by blocks of not-converged MOs
+!> \brief lanczos refinement by blocks of non-converged MOs
 !> \param krylov_space ...
 !> \param ks ...
 !> \param c0 ...