diff --git a/gobject/gatomicarray.c b/gobject/gatomicarray.c
index 5ebf6b89b..43111e8c7 100644
--- a/gobject/gatomicarray.c
+++ b/gobject/gatomicarray.c
@@ -17,6 +17,7 @@
 
 #include "config.h"
 
+#include "../glib/gvalgrind.h"
 #include <string.h>
 
 #include "gatomicarray.h"
@@ -77,6 +78,11 @@ freelist_alloc (gsize size, gboolean reuse)
   mem = g_slice_alloc (real_size);
   mem = ((char *) mem) + sizeof (gsize);
   G_ATOMIC_ARRAY_DATA_SIZE (mem) = size;
+
+#if ENABLE_VALGRIND
+  VALGRIND_MALLOCLIKE_BLOCK (mem, real_size - sizeof (gsize), FALSE, FALSE);
+#endif
+
   return mem;
 }
 
diff --git a/gobject/gtype.c b/gobject/gtype.c
index 909faf138..69cd27512 100644
--- a/gobject/gtype.c
+++ b/gobject/gtype.c
@@ -442,6 +442,10 @@ type_node_any_new_W (TypeNode             *pnode,
       node = G_STRUCT_MEMBER_P (node, SIZEOF_FUNDAMENTAL_INFO);
       static_fundamental_type_nodes[ftype >> G_TYPE_FUNDAMENTAL_SHIFT] = node;
       type = ftype;
+
+#if ENABLE_VALGRIND
+      VALGRIND_MALLOCLIKE_BLOCK (node, node_size - SIZEOF_FUNDAMENTAL_INFO, FALSE, TRUE);
+#endif
     }
   else
     type = (GType) node;