5 files changed, 5 insertions, 5 deletions
diff --git a/Source/SPDotExporter.h b/Source/SPDotExporter.h
index d54aa05b..5de22927 100644
--- a/Source/SPDotExporter.h
+++ b/Source/SPDotExporter.h
@@ -53,7 +53,7 @@
 /**
  * @property delegate Exporter delegate
  */
-@property(readwrite, assign) NSObject *delegate;
+@property(readwrite, assign) NSObject <SPDotExporterProtocol> *delegate;
 
 /**
  * @property dotExportTables Table information
diff --git a/Source/SPHTMLExporter.h b/Source/SPHTMLExporter.h
index 8fc7e54a..521aed9f 100644
--- a/Source/SPHTMLExporter.h
+++ b/Source/SPHTMLExporter.h
@@ -41,7 +41,7 @@
 /**
  * @property delegate Exporter delegate
  */
-@property(readwrite, assign) NSObject *delegate;
+@property(readwrite, assign) NSObject <SPHTMLExporterProtocol> *delegate;
 
 - (id)initWithDelegate:(NSObject *)exportDelegate;
 
diff --git a/Source/SPPDFExporter.h b/Source/SPPDFExporter.h
index 2d00e8c1..872f5b23 100644
--- a/Source/SPPDFExporter.h
+++ b/Source/SPPDFExporter.h
@@ -41,7 +41,7 @@
 /**
  * @property delegate Exporter delegate
  */
-@property(readwrite, assign) NSObject *delegate;
+@property(readwrite, assign) NSObject <SPPDFExporterProtocol> *delegate;
 
 - (id)initWithDelegate:(NSObject *)exportDelegate;
 
diff --git a/Source/SPSQLExporter.h b/Source/SPSQLExporter.h
index c554a51f..559cdc9e 100644
--- a/Source/SPSQLExporter.h
+++ b/Source/SPSQLExporter.h
@@ -62,7 +62,7 @@
 /**
  * @property delegate Exporter delegate
  */
-@property(readwrite, assign) NSObject *delegate;
+@property(readwrite, assign) NSObject <SPSQLExporterProtocol> *delegate;
 
 /**
  * @property sqlExportTables Tables
diff --git a/Source/SPXMLExporter.h b/Source/SPXMLExporter.h
index 4e373e8d..8d7a740c 100644
--- a/Source/SPXMLExporter.h
+++ b/Source/SPXMLExporter.h
@@ -46,7 +46,7 @@
 /**
  * @property delegate Exporter delegate
  */
-@property(readwrite, assign) NSObject *delegate;
+@property(readwrite, assign) NSObject <SPXMLExporterProtocol> *delegate;
 
 /**
  * @property xmlDataArray Data array