diff --git a/interfaces/iproblem.h b/interfaces/iproblem.h
index 5e736acf2f..1e1863bd81 100644
--- a/interfaces/iproblem.h
+++ b/interfaces/iproblem.h
@@ -1,123 +1,123 @@
 /*
  * Copyright 2015 Laszlo Kis-Adam
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Library General Public License as
  * published by the Free Software Foundation; either version 2 of the
  * License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public
  * License along with this program; if not, write to the
  * Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 
 #ifndef IPROBLEM_H
 #define IPROBLEM_H
 
 #include <QExplicitlySharedDataPointer>
 #include <QString>
 #include <QVector>
 
 #include <language/editor/documentrange.h>
 
 namespace KDevelop
 {
 class IAssistant;
 
 /// Interface for the Problem classes
-class IProblem : public QSharedData
+class KDEVPLATFORMLANGUAGE_EXPORT IProblem : public QSharedData
 {
 public:
     typedef QExplicitlySharedDataPointer<IProblem> Ptr;
 
     /// The source of the problem. That is which tool / which part found this problem.
     enum Source {
         Unknown,
         Disk,
         Preprocessor,
         Lexer,
         Parser,
         DUChainBuilder,
         SemanticAnalysis,
         ToDo,
         Plugin             /// The source is a problem checker plugin
     };
 
     /// Severity of the problem. That is, how serious is the found problem.
     enum Severity {
         NoSeverity = 0,
         Error = 1,
         Warning = 2,
         Hint = 4
     };
     Q_DECLARE_FLAGS(Severities, Severity)
 
     IProblem(){}
     virtual ~IProblem(){}
 
     /// Returns the source of the problem
     virtual Source source() const = 0;
 
     /// Sets the source of the problem
     virtual void setSource(Source source) = 0;
 
     /// Returns a string containing the source of the problem
     virtual QString sourceString() const = 0;
 
     /// Returns the location of the problem (path, line, column)
     virtual KDevelop::DocumentRange finalLocation() const = 0;
 
     /// Sets the location of the problem (path, line, column)
     virtual void setFinalLocation(const KDevelop::DocumentRange& location) = 0;
 
     /// Returns the short description of the problem.
     virtual QString description() const = 0;
 
     /// Sets the short description of the problem
     virtual void setDescription(const QString& description) = 0;
 
     /// Returns the detailed explanation of the problem.
     virtual QString explanation() const = 0;
 
     /// Sets the detailed explanation of the problem
     virtual void setExplanation(const QString& explanation) = 0;
 
     /// Returns the severity of the problem
     virtual Severity severity() const = 0;
 
     /// Sets the severity of the problem
     virtual void setSeverity(Severity severity) = 0;
 
     /// Returns a string containing the severity of the problem
     virtual QString severityString() const = 0;
 
     /// Returns the diagnostics of the problem.
     virtual QVector<Ptr> diagnostics() const = 0;
 
     /// Sets the diagnostics of the problem
     virtual void setDiagnostics(const QVector<Ptr> &diagnostics) = 0;
 
     /// Adds a diagnostic line to the problem
     virtual void addDiagnostic(const Ptr &diagnostic) = 0;
 
     /// Clears all diagnostics
     virtual void clearDiagnostics() = 0;
 
     /// Returns a solution assistant for the problem, if applicable that is.
     virtual QExplicitlySharedDataPointer<KDevelop::IAssistant> solutionAssistant() const = 0;
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(IProblem::Severities)
 
 }
 
 Q_DECLARE_METATYPE(KDevelop::IProblem::Ptr)
 
 #endif