1 files changed, 1 insertions, 0 deletions
diff --git a/util/w32reg.c b/util/w32reg.c
index 5391c8027..aa507b2d7 100644
--- a/util/w32reg.c
+++ b/util/w32reg.c
@@ -103,6 +103,7 @@ read_w32_registry_string( const char *root, const char *dir, const char *name )
         nbytes = ExpandEnvironmentStrings (result, tmp, n1);
         if (nbytes && nbytes > n1) {
             free (tmp);
+            n1 = nbytes;
             tmp = malloc (n1 + 1);
             if (!tmp)
                 goto leave;