diff --git a/python/core/qgsattributetableconfig.sip b/python/core/qgsattributetableconfig.sip
index fb113819544..46248f515aa 100644
--- a/python/core/qgsattributetableconfig.sip
+++ b/python/core/qgsattributetableconfig.sip
@@ -31,7 +31,6 @@ class QgsAttributeTableConfig
 Constructor for ColumnConfig
 %End
 
-      bool operator== ( const QgsAttributeTableConfig::ColumnConfig &other ) const;
 
       QgsAttributeTableConfig::Type type;    //!< The type of this column.
       QString name; //!< The name of the attribute if this column represents a field
diff --git a/src/core/qgsattributetableconfig.h b/src/core/qgsattributetableconfig.h
index 46dec51b319..55a7b12fc18 100644
--- a/src/core/qgsattributetableconfig.h
+++ b/src/core/qgsattributetableconfig.h
@@ -21,6 +21,7 @@
 #include <QDomNode>
 #include <QVariant>
 
+#include "qgis.h"
 #include "qgis_core.h"
 
 class QgsFields;
@@ -56,7 +57,7 @@ class CORE_EXPORT QgsAttributeTableConfig
         , width( -1 )
       {}
 
-      bool operator== ( const QgsAttributeTableConfig::ColumnConfig &other ) const;
+      bool operator== ( const QgsAttributeTableConfig::ColumnConfig &other ) const SIP_SKIP;
 
       QgsAttributeTableConfig::Type type;    //!< The type of this column.
       QString name; //!< The name of the attribute if this column represents a field