diff --git a/src/modules/partition/gui/EraseDiskPage.cpp b/src/modules/partition/gui/EraseDiskPage.cpp
index e583d9dcf..e2aaef9b8 100644
--- a/src/modules/partition/gui/EraseDiskPage.cpp
+++ b/src/modules/partition/gui/EraseDiskPage.cpp
@@ -103,7 +103,7 @@ EraseDiskPage::init( PartitionCoreModule* core )
 
 
 bool
-EraseDiskPage::isNextEnabled()
+EraseDiskPage::isNextEnabled() const
 {
     return m_nextEnabled;
 }
diff --git a/src/modules/partition/gui/EraseDiskPage.h b/src/modules/partition/gui/EraseDiskPage.h
index a72ec1a6d..53d875e11 100644
--- a/src/modules/partition/gui/EraseDiskPage.h
+++ b/src/modules/partition/gui/EraseDiskPage.h
@@ -33,7 +33,7 @@ public:
 
     void init( PartitionCoreModule* core );
 
-    bool isNextEnabled();
+    bool isNextEnabled() const;
 
 signals:
     void nextStatusChanged( bool );