diff --git a/configure b/configure
index 721a54124e..1aa9adcfd4 100755
--- a/configure
+++ b/configure
@@ -5044,9 +5044,9 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
   save_CXXFLAGS="$CXXFLAGS"
-  CXXFLAGS="$CXXFLAGS -Wredundant-delcs"
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wredundant-delcs" >&5
-$as_echo_n "checking whether $CXX accepts -Wredundant-delcs... " >&6; }
+  CXXFLAGS="$CXXFLAGS -Wredundant-decls"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wredundant-decls" >&5
+$as_echo_n "checking whether $CXX accepts -Wredundant-decls... " >&6; }
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
diff --git a/configure.ac b/configure.ac
index 24291b45f0..5ccf1ca0a9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -426,7 +426,7 @@ then
   PLUMED_CHECK_CXXFLAG([-Wcast-qual])
   PLUMED_CHECK_CXXFLAG([-Wcast-align])
   PLUMED_CHECK_CXXFLAG([-Wconversion])
-  PLUMED_CHECK_CXXFLAG([-Wredundant-delcs])
+  PLUMED_CHECK_CXXFLAG([-Wredundant-decls])
   PLUMED_CHECK_CXXFLAG([-Wvariadic-macros])
   PLUMED_CHECK_CXXFLAG([-Wold-style-cast])
 fi
diff --git a/user-doc/tutorials/a-master-ISDD-1.txt b/user-doc/tutorials/a-master-ISDD-1.txt
index b4d3b0a41b..b66e0e1eeb 100644
--- a/user-doc/tutorials/a-master-ISDD-1.txt
+++ b/user-doc/tutorials/a-master-ISDD-1.txt
@@ -24,30 +24,16 @@ In this and in the next tutorial, we will use two pieces of software: <a href="h
 
 \subsection master-ISDD-1-install Installation
 
-First, check if `conda` is installed on your machine by typing:
+You should have all the software installed in a conda environment.
+To check this, you can type:
 
 \verbatim
-conda
-\endverbatim
-
-In case the command is not found, please follow the instructions below to install `conda` in the
-directory `/path/to/conda`. You can choose it in your home so that you will have write permission to it.
-If `conda` is already installed on your machine, please skip the instructions below and move directly
-to the creation of the `conda` environment for this tutorial.
-
-\verbatim
-# on Linux:
-wget -c https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh
-# on MacOS:
-# wget -c https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh -O miniconda.sh
-bash ./miniconda.sh -b -f -p /path/to/conda
-# export PATH to find the conda executable
-export PATH="/path/to/conda/bin:$PATH"
-# initialize bash shell
-conda init bash
+# activate environment
+conda activate ISDD-tutorial-2024
 \endverbatim
 
-Now we can create a `conda` environment for the ISDD tutorial using the following commands:
+If the environment is not found, you can prepare it yourself.
+First, you need to create the conda environment with:
 
 \verbatim
 # create environment
@@ -66,11 +52,12 @@ Finally, we can proceed with the installation of the required software:
 \verbatim
 conda install --strict-channel-priority -c plumed/label/isdd-2024 -c conda-forge plumed
 conda install --strict-channel-priority -c plumed/label/isdd-2024 -c conda-forge gromacs
+conda install -c conda-forge numpy
 \endverbatim
 
 The `--strict-channel-priority` might be necessary in case your `conda` install is configured to download packages from the `bioconda` channel. Indeed, `bioconda` contains a version of GROMACS that is **not** patched with PLUMED and would thus not work here.
 
-Keep in mind that every time you open a new shell, in order to use PLUMED and GROMACS you need to 
+Please keep in mind that every time you open a new shell, in order to use PLUMED and GROMACS you need to 
 activate the `ISDD-tutorial-2024` environment using the following command:
 
 \verbatim
diff --git a/user-doc/tutorials/a-master-ISDD-2.txt b/user-doc/tutorials/a-master-ISDD-2.txt
index e12a069698..79941e9255 100644
--- a/user-doc/tutorials/a-master-ISDD-2.txt
+++ b/user-doc/tutorials/a-master-ISDD-2.txt
@@ -178,7 +178,7 @@ This default choice should be reasonable for most applications.
 Once your `plumed.dat` file is complete, you can run a 10-ns long metadynamics simulations with the following command:
 
 \verbatim
-gmx_mpi mdrun -s topol.tpr -nsteps 5000000 -plumed plumed.dat 
+gmx_mpi mdrun -s topol.tpr -nsteps 5000000 -plumed plumed.dat -ntomp 1
 \endverbatim
 
 During the metadynamics simulation, PLUMED will create two files, named `COLVAR` and `HILLS`.