diff --git a/Changes.md b/Changes.md
index 838942fd268..ffbf71ec456 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,7 +1,10 @@
 1.4.15.x (relative to 1.4.15.2)
 ========
 
+Fixes
+-----
 
+- Catalogue : Fixed bug which "stole" drags that crossed the image listing but which were destined elsewhere, for instance a drag from the HierarchyView to a PathFilter in the GraphEditor.
 
 1.4.15.2 (relative to 1.4.15.1)
 ========
diff --git a/python/GafferImageUI/CatalogueUI.py b/python/GafferImageUI/CatalogueUI.py
index 1c0945ecd92..b0e1b0e2b82 100644
--- a/python/GafferImageUI/CatalogueUI.py
+++ b/python/GafferImageUI/CatalogueUI.py
@@ -1079,7 +1079,7 @@ def __dropImage( self, eventData ) :
 
 	def __pathListingDragEnter( self, widget, event ) :
 
-		if isinstance( event.data, IECore.StringVectorData ) :
+		if event.sourceWidget is widget and isinstance( event.data, IECore.StringVectorData ) and event.data :
 			# Allow reordering of images
 			self.__moveToPath = None
 			self.__mergeGroupId += 1
@@ -1101,7 +1101,7 @@ def __pathListingDragLeave( self, widget, event ) :
 
 	def __pathListingDragMove( self, listing, event ) :
 
-		if not event.data or not isinstance( event.data, IECore.StringVectorData ) :
+		if not ( event.sourceWidget is listing and isinstance( event.data, IECore.StringVectorData ) and event.data ) :
 			return
 
 		targetPath = self.__pathListing.pathAt( event.line.p0 )