diff --git a/apps/opencs/model/tools/operation.cpp b/apps/opencs/model/tools/operation.cpp
index 12c4a8108..b68f79ca4 100644
--- a/apps/opencs/model/tools/operation.cpp
+++ b/apps/opencs/model/tools/operation.cpp
@@ -1,6 +1,9 @@
 
 #include "operation.hpp"
 
+#include <string>
+#include <vector>
+
 #include <QTimer>
 
 #include "../doc/state.hpp"
@@ -54,6 +57,8 @@ void CSMTools::Operation::abort()
 
 void CSMTools::Operation::verify()
 {
+    std::vector<std::string> messages;
+
     while (mCurrentStage!=mStages.end())
     {
         if (mCurrentStep>=mCurrentStage->second)
@@ -63,7 +68,7 @@ void CSMTools::Operation::verify()
         }
         else
         {
-            mCurrentStage->first->perform (mCurrentStep++);
+            mCurrentStage->first->perform (mCurrentStep++, messages);
             ++mCurrentStepTotal;
             break;
         }
@@ -71,6 +76,9 @@ void CSMTools::Operation::verify()
 
     emit progress (mCurrentStepTotal, mTotalSteps ? mTotalSteps : 1, mType);
 
+    for (std::vector<std::string>::const_iterator iter (messages.begin()); iter!=messages.end(); ++iter)
+        emit reportMessage (iter->c_str(), mType);
+
     if (mCurrentStage==mStages.end())
         exit();
 }
\ No newline at end of file
diff --git a/apps/opencs/model/tools/operation.hpp b/apps/opencs/model/tools/operation.hpp
index 72419e00a..4731c58fa 100644
--- a/apps/opencs/model/tools/operation.hpp
+++ b/apps/opencs/model/tools/operation.hpp
@@ -39,6 +39,8 @@ namespace CSMTools
 
             void progress (int current, int max, int type);
 
+            void reportMessage (const QString& message, int type);
+
         public slots:
 
             void abort();
diff --git a/apps/opencs/model/tools/stage.hpp b/apps/opencs/model/tools/stage.hpp
index 912559410..1ad61960a 100644
--- a/apps/opencs/model/tools/stage.hpp
+++ b/apps/opencs/model/tools/stage.hpp
@@ -1,6 +1,9 @@
 #ifndef CSM_TOOLS_STAGE_H
 #define CSM_TOOLS_STAGE_H
 
+#include <vector>
+#include <string>
+
 namespace CSMTools
 {
     class Stage
@@ -12,7 +15,8 @@ namespace CSMTools
                 virtual int setup() = 0;
                 ///< \return number of steps
 
-                virtual void perform (int stage) = 0;
+                virtual void perform (int stage, std::vector<std::string>& messages) = 0;
+                ///< Messages resulting from this tage will be appended to \a messages.
     };
 }
 
diff --git a/apps/opencs/model/tools/tools.cpp b/apps/opencs/model/tools/tools.cpp
index 608244a3c..8293b7291 100644
--- a/apps/opencs/model/tools/tools.cpp
+++ b/apps/opencs/model/tools/tools.cpp
@@ -30,6 +30,8 @@ CSMTools::Verifier *CSMTools::Tools::getVerifier()
 
         connect (mVerifier, SIGNAL (progress (int, int, int)), this, SIGNAL (progress (int, int, int)));
         connect (mVerifier, SIGNAL (finished()), this, SLOT (verifierDone()));
+        connect (mVerifier, SIGNAL (reportMessage (const QString&, int)),
+            this, SLOT (verifierMessage (const QString&, int)));
     }
 
     return mVerifier;
@@ -77,4 +79,12 @@ int CSMTools::Tools::getRunningOperations() const
 void CSMTools::Tools::verifierDone()
 {
     emit done (CSMDoc::State_Verifying);
+}
+
+#include <iostream>
+void CSMTools::Tools::verifierMessage (const QString& message, int type)
+{
+    /// \todo store it in a result model instead
+
+    std::cout << message.toStdString() << std::endl;
 }
\ No newline at end of file
diff --git a/apps/opencs/model/tools/tools.hpp b/apps/opencs/model/tools/tools.hpp
index ab1863738..04140bb91 100644
--- a/apps/opencs/model/tools/tools.hpp
+++ b/apps/opencs/model/tools/tools.hpp
@@ -43,6 +43,8 @@ namespace CSMTools
 
             void verifierDone();
 
+            void verifierMessage (const QString& message, int type);
+
         signals:
 
             void progress (int current, int max, int type);