diff --git a/Source/GSPrivate.h b/Source/GSPrivate.h
index 46b1c4a..1e04fc0 100644
--- a/Source/GSPrivate.h
+++ b/Source/GSPrivate.h
@@ -543,5 +543,12 @@ GSPrivateIsCollectable(const void *ptr) GS_ATTRIB_PRIVATE;
 NSZone*
 GSAtomicMallocZone (void);
 
+/* Implementation of ShellSort for GNUStep
+ */
+#if GS_USE_SHELLSORT
address@hidden GSShellSortPlaceHolder : NSObject
address@hidden
+#endif /* GS_USE_SHELLSORT */
+
 #endif /* _GSPrivate_h_ */
 
diff --git a/Source/GSShellSort.m b/Source/GSShellSort.m
index 2e523fa..272f7a4 100644
--- a/Source/GSShellSort.m
+++ b/Source/GSShellSort.m
@@ -113,10 +113,6 @@ _GSShellSort(id *objects,
 }
 
 
address@hidden GSShellSortPlaceHolder : NSObject
-
address@hidden
-
 @implementation GSShellSortPlaceHolder
 + (void) load
 {