diff --git a/src/core/tandem_run/tandembatchprocess.cpp b/src/core/tandem_run/tandembatchprocess.cpp
index 74abc820c1d3148c063938b3db8f95d4097898db..d01c4f4e05af60b4a7704aeb152a48408dfaac1e 100644
--- a/src/core/tandem_run/tandembatchprocess.cpp
+++ b/src/core/tandem_run/tandembatchprocess.cpp
@@ -444,7 +444,7 @@ TandemBatchProcess::runOne(const QString &mz_file)
       catch(pappso::PappsoException &error)
         {
           errorStream
-            << "Oops! an error occurred in PAPPSO MS tools. Dont Panic :"
+            << "Oops! an error occurred in PAPPSO MS tools. Don't panic :"
             << endl;
           errorStream << error.qwhat() << endl;
 
@@ -456,7 +456,7 @@ TandemBatchProcess::runOne(const QString &mz_file)
       catch(std::exception &error)
         {
           errorStream
-            << "Oops! an std error occurred in PAPPSO MS tools. Dont Panic :"
+            << "Oops! an std error occurred in PAPPSO MS tools. Don't panic :"
             << endl;
           errorStream << error.what() << endl;
           throw pappso::PappsoException(
diff --git a/src/gui/lists/ms_identification_run_list_view/engine_detail_view/enginedetailwindow.cpp b/src/gui/lists/ms_identification_run_list_view/engine_detail_view/enginedetailwindow.cpp
index 2b2a56c91fdea39bd0443ebcd196982a80da96c4..0613c28f58d23bee252d76c2071773f024890c09 100644
--- a/src/gui/lists/ms_identification_run_list_view/engine_detail_view/enginedetailwindow.cpp
+++ b/src/gui/lists/ms_identification_run_list_view/engine_detail_view/enginedetailwindow.cpp
@@ -95,7 +95,7 @@ EngineDetailWindow::updateDisplay()
           NoEngineParamWidget *no_engine_view_widget;
           QString message =
             m_identificationEngine->get()->getIdentificationEngineName() +
-            " parameters view isn't implemented\nComming Soon";
+            " parameters view isn't implemented\nComing Soon";
           ui->labelPreset->setText("No preset file found");
           no_engine_view_widget = new NoEngineParamWidget(this, message);
           ui->verticalLayout->insertWidget(1, no_engine_view_widget);
diff --git a/src/gui/mainwindow.cpp b/src/gui/mainwindow.cpp
index f3e9299961eb16f00a151cced1f0b153af167d7a..c6e7aa08dc57dd5bfeab296d763c735ad126e3d0 100644
--- a/src/gui/mainwindow.cpp
+++ b/src/gui/mainwindow.cpp
@@ -159,7 +159,7 @@ MainWindow::viewError(QString error)
 {
   hideWaitingMessage();
   QMessageBox::warning(
-    this, tr("Oops! an error occurred in XTPCPP. Dont Panic :"), error);
+    this, tr("Oops! an error occurred in XTPCPP. Don't panic :"), error);
 }
 
 void
@@ -865,14 +865,14 @@ MainWindow::run()
   catch(pappso::PappsoException &error)
     {
       viewError(
-        tr("Oops! an error occurred in X!TandemPipeline. Dont Panic :\n%1")
+        tr("Oops! an error occurred in X!TandemPipeline. Don't panic :\n%1")
           .arg(error.qwhat()));
     }
 
   catch(std::exception &error)
     {
       viewError(
-        tr("Oops! an error occurred in X!TandemPipeline. Dont Panic :\n%1")
+        tr("Oops! an error occurred in X!TandemPipeline. Don't panic :\n%1")
           .arg(error.what()));
     }
 }
diff --git a/src/gui/peptide_detail_view/peptidewindow.cpp b/src/gui/peptide_detail_view/peptidewindow.cpp
index b1071d75cd7e5d7bf713e6047a220ac7d509c1b4..f10c76482fcdd26c335ed1db8c08795d0fea8834 100644
--- a/src/gui/peptide_detail_view/peptidewindow.cpp
+++ b/src/gui/peptide_detail_view/peptidewindow.cpp
@@ -408,7 +408,7 @@ PeptideWindow::doSpectrumSpReady(pappso::MassSpectrumCstSPtr spectrum_sp,
 
       QMessageBox::warning(
         this,
-        tr("Oops! an error occurred in XTPCPP. Dont Panic :"),
+        tr("Oops! an error occurred in XTPCPP. Don't panic :"),
         fatal_error);
       mp_status_label->setText(tr("ERROR reading spectrum"));
       QSettings settings;
diff --git a/src/gui/project_view/projectwindow.cpp b/src/gui/project_view/projectwindow.cpp
index 5d46f14f6d4f322efae45951b50498aea27f0d86..c7261a9e9b51089f80cf7f170facb4251e516c9f 100644
--- a/src/gui/project_view/projectwindow.cpp
+++ b/src/gui/project_view/projectwindow.cpp
@@ -941,7 +941,7 @@ void
 ProjectWindow::viewError(QString error)
 {
   QMessageBox::warning(
-    this, tr("Oops! an error occurred in XTPCPP. Dont Panic :"), error);
+    this, tr("Oops! an error occurred in XTPCPP. Don't panic :"), error);
 }
 
 
diff --git a/src/gui/widgets/automatic_filter_widget/automatic_filter_widget.ui b/src/gui/widgets/automatic_filter_widget/automatic_filter_widget.ui
index 517dfdc0b456b7e7124df08cfcd430e768f42f3d..a7fb39ff3745782735b7482c2e8b7b9f543233f0 100644
--- a/src/gui/widgets/automatic_filter_widget/automatic_filter_widget.ui
+++ b/src/gui/widgets/automatic_filter_widget/automatic_filter_widget.ui
@@ -164,7 +164,7 @@
         </sizepolicy>
        </property>
        <property name="toolTip">
-        <string>allows to reach the minimum number of peptides per protein even if they are in different samples</string>
+        <string>allows one to reach the minimum number of peptides per protein even if they are in different samples</string>
        </property>
        <property name="text">
         <string>overall samples</string>
diff --git a/src/main.cpp b/src/main.cpp
index d98d217232f72fd712eec1719b8718e273fdf8db..7992fd4dcf9a72677ee7f4c721a66396dd2242f6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -77,7 +77,7 @@ main(int argc, char *argv[])
     }
   catch(pappso::PappsoException &error)
     {
-      errorStream << "Oops! an error occurred in XTPcpp. Dont Panic :" << endl;
+      errorStream << "Oops! an error occurred in XTPcpp. Don't panic :" << endl;
       errorStream << error.qwhat() << endl;
       QMessageBox::warning(app.activeWindow(), "Error !!", error.qwhat());
       app.exit(1);
@@ -85,7 +85,7 @@ main(int argc, char *argv[])
 
   catch(std::exception &error)
     {
-      errorStream << "Oops! an error occurred in XTPcpp. Dont Panic :" << endl;
+      errorStream << "Oops! an error occurred in XTPcpp. Don't panic :" << endl;
       errorStream << error.what() << endl;
       QMessageBox::warning(app.activeWindow(), "Error !!", error.what());
       app.exit(1);