diff --git a/girnode.h b/girnode.h
index c1b2369cf..427f8e908 100644
--- a/girnode.h
+++ b/girnode.h
@@ -263,7 +263,7 @@ struct _GIrNodeValue
 
   gboolean deprecated;
 
-  guint32 value;
+  gint32 value;
 };
 
 struct _GIrNodeConstant
diff --git a/gtypelib.h b/gtypelib.h
index 26486afc5..f02dcfc2e 100644
--- a/gtypelib.h
+++ b/gtypelib.h
@@ -614,7 +614,7 @@ typedef struct {
   guint32 deprecated : 1;
   guint32 reserved   :31;
   guint32 name;
-  guint32 value;
+  gint32 value;
 } ValueBlob;
 
 /**