diff --git a/src/libs/utils/logging.h b/src/libs/utils/logging.h
index da212ef9208..ad041ec0b83 100644
--- a/src/libs/utils/logging.h
+++ b/src/libs/utils/logging.h
@@ -28,6 +28,7 @@
 ****************************************************************************/
 
 #ifndef LOGGING_H
+#define LOGGING_H
 
 #include <qglobal.h>
 
@@ -42,7 +43,7 @@ class QLoggingCategory
     Q_DISABLE_COPY(QLoggingCategory)
 public:
     explicit QLoggingCategory(const char *category) : name(category) {}
-    ~QLoggingCategory();
+    ~QLoggingCategory() {}
     static void setFilterRules(const QString &) {}
 
     bool isDebugEnabled() const { return false; }