diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+### 0.20.7
+
++ Fix a memory leak in doConstructGObject.
+
 ### 0.20.6
 
 + Use g_object_new_with_properties instead of g_object_newv in
diff --git a/Data/GI/Base/GObject.hsc b/Data/GI/Base/GObject.hsc
--- a/Data/GI/Base/GObject.hsc
+++ b/Data/GI/Base/GObject.hsc
@@ -53,6 +53,7 @@
   result <- g_object_new gtype (fromIntegral nprops) names values
   freeStrings nprops names
   free values
+  free names
   -- Make sure that the GValues defining the GProperties are still
   -- alive at this point (so, in particular, they are still alive when
   -- g_object_new is called). Without this the GHC garbage collector
diff --git a/haskell-gi-base.cabal b/haskell-gi-base.cabal
--- a/haskell-gi-base.cabal
+++ b/haskell-gi-base.cabal
@@ -1,5 +1,5 @@
 name:                haskell-gi-base
-version:             0.20.6
+version:             0.20.7
 synopsis:            Foundation for libraries generated by haskell-gi
 description:         Foundation for libraries generated by haskell-gi
 homepage:            https://github.com/haskell-gi/haskell-gi-base