diff --git a/src/w32-io.c b/src/w32-io.c
index 634ecb32..d00b8db3 100644
--- a/src/w32-io.c
+++ b/src/w32-io.c
@@ -794,6 +794,7 @@ create_writer (int fd)
   if (fd < 0 || fd >= MAX_SLAFD || !fd_table[fd].used)
     {
       TRACE_SYSERR (EIO);
+      free (ctx);
       return NULL;
     }
   TRACE_LOG4 ("fd=%d -> handle=%p socket=%d dupfrom=%d",
diff --git a/src/w32-util.c b/src/w32-util.c
index 3884b40d..daf3bd2d 100644
--- a/src/w32-util.c
+++ b/src/w32-util.c
@@ -710,7 +710,10 @@ _gpgme_mkstemp (int *fd, char **name)
   strcpy (stpcpy (tmpname, tmp), "\\gpgme-XXXXXX");
   *fd = mkstemp (tmpname);
   if (fd < 0)
-    return -1;
+    {
+      free (tmpname);
+      return -1;
+    }
 
   *name = tmpname;
   return 0;