diff --git a/src/libcalamares/GlobalStorage.cpp b/src/libcalamares/GlobalStorage.cpp
index 717b8fff7..0c78201d3 100644
--- a/src/libcalamares/GlobalStorage.cpp
+++ b/src/libcalamares/GlobalStorage.cpp
@@ -88,6 +88,13 @@ GlobalStorage::remove( const QString& key )
     return nItems;
 }
 
+void
+GlobalStorage::clear()
+{
+    WriteLock l( this );
+    m.clear();
+}
+
 QVariant
 GlobalStorage::value( const QString& key ) const
 {
diff --git a/src/libcalamares/GlobalStorage.h b/src/libcalamares/GlobalStorage.h
index a0a1940f2..da17243d3 100644
--- a/src/libcalamares/GlobalStorage.h
+++ b/src/libcalamares/GlobalStorage.h
@@ -70,6 +70,9 @@ public:
      */
     int remove( const QString& key );
 
+    /// @brief Clears all keys in this GS object
+    void clear();
+
     /** @brief dump keys and values to the debug log
      *
      * All the keys and their values are written to the debug log.