diff --git a/tests/check/elements/alphacolor.c b/tests/check/elements/alphacolor.c
index 388ee2f161..35df1fea0a 100644
--- a/tests/check/elements/alphacolor.c
+++ b/tests/check/elements/alphacolor.c
@@ -221,7 +221,8 @@ GST_START_TEST (test_rgba32)
   push_caps (create_caps_rgba32 ());
 
   inbuffer = create_buffer_rgba32_3x4 ();
-  GST_DEBUG ("Created buffer of %d bytes", gst_buffer_get_size (inbuffer));
+  GST_DEBUG ("Created buffer of %" G_GSIZE_FORMAT " bytes",
+      gst_buffer_get_size (inbuffer));
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
 
   /* pushing gives away reference */
diff --git a/tests/check/elements/apev2mux.c b/tests/check/elements/apev2mux.c
index 8505ba054d..88f9e3ecb0 100644
--- a/tests/check/elements/apev2mux.c
+++ b/tests/check/elements/apev2mux.c
@@ -209,7 +209,7 @@ got_buffer (GstElement * fakesink, GstBuffer * buf, GstPad * pad,
 
   gst_buffer_map (buf, &map, GST_MAP_READ);
 
-  GST_LOG ("got buffer, size=%u, offset=%" G_GINT64_FORMAT, map.size, off);
+  GST_LOG ("size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT, map.size, off);
 
   fail_unless (GST_BUFFER_OFFSET_IS_VALID (buf));
 
diff --git a/tests/check/elements/id3v2mux.c b/tests/check/elements/id3v2mux.c
index 67e70fe001..21869e6b71 100644
--- a/tests/check/elements/id3v2mux.c
+++ b/tests/check/elements/id3v2mux.c
@@ -294,7 +294,7 @@ got_buffer (GstElement * fakesink, GstBuffer * buf, GstPad * pad,
 
   gst_buffer_map (buf, &map, GST_MAP_READ);
 
-  GST_LOG ("got buffer, size=%u, offset=%" G_GINT64_FORMAT, map.size, off);
+  GST_LOG ("size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT, map.size, off);
 
   fail_unless (GST_BUFFER_OFFSET_IS_VALID (buf));
 
diff --git a/tests/check/pipelines/flacdec.c b/tests/check/pipelines/flacdec.c
index c64f3c2925..651d77f886 100644
--- a/tests/check/pipelines/flacdec.c
+++ b/tests/check/pipelines/flacdec.c
@@ -36,7 +36,7 @@ _get_first_sample (GstSample * sample)
   fail_unless (caps != NULL, "sample without caps");
 
   buf = gst_sample_get_buffer (sample);
-  GST_DEBUG ("buffer with size=%u, caps=%" GST_PTR_FORMAT,
+  GST_DEBUG ("buffer with size=%" G_GSIZE_FORMAT ", caps=%" GST_PTR_FORMAT,
       gst_buffer_get_size (buf), caps);
 
   gst_buffer_map (buf, &map, GST_MAP_READ);