diff --git a/test/api/test-blob.c b/test/api/test-blob.c
index 6759920da..bbb7e2efc 100644
--- a/test/api/test-blob.c
+++ b/test/api/test-blob.c
@@ -270,7 +270,7 @@ test_blob_subblob (fixture_t *fixture, gconstpointer user_data)
 
   if (mm == HB_MEMORY_MODE_DUPLICATE) {
     g_assert_cmpint (fixture->freed, ==, 1);
-    fixture->data = hb_blob_get_data (b, NULL);
+    fixture->data = (char *) hb_blob_get_data (b, NULL);
   } else {
     g_assert_cmpint (fixture->freed, ==, 0);
   }
diff --git a/util/helper-cairo-ansi.cc b/util/helper-cairo-ansi.cc
index f7c06609d..376bf2b83 100644
--- a/util/helper-cairo-ansi.cc
+++ b/util/helper-cairo-ansi.cc
@@ -57,7 +57,7 @@ helper_cairo_surface_write_to_ansi_stream (cairo_surface_t	*surface,
     cairo_surface_reference (surface);
 
   unsigned int stride = cairo_image_surface_get_stride (surface);
-  const uint32_t *data = (uint32_t *) cairo_image_surface_get_data (surface);
+  const uint32_t *data = (uint32_t *) (void *) cairo_image_surface_get_data (surface);
 
   /* We don't have rows to spare on the terminal window...
    * Find the tight image top/bottom and only print in between. */