diff --git a/ChangeLog b/ChangeLog
index de353fd7d..4941e0e24 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2018-07-02  Jeff Carey  <Jeff.Carey@monotype.com>
+
+	* src/psnames/psmodule.c (ps_unicodes_init): Fix alloc debugging.
+
 2018-07-02  Werner Lemberg  <wl@gnu.org>
 
 	s/palette_types/palette_flags/.
diff --git a/src/psnames/psmodule.c b/src/psnames/psmodule.c
index 97dcfb691..719e94d8f 100644
--- a/src/psnames/psmodule.c
+++ b/src/psnames/psmodule.c
@@ -392,7 +392,9 @@
         /* Reallocate if the number of used entries is much smaller. */
         if ( count < num_glyphs / 2 )
         {
-          (void)FT_RENEW_ARRAY( table->maps, num_glyphs, count );
+          (void)FT_RENEW_ARRAY( table->maps,
+                                num_glyphs + EXTRA_GLYPH_LIST_SIZE,
+                                count );
           error = FT_Err_Ok;
         }