diff --git a/subprojects/gst-plugins-bad/tests/check/libs/av1bitwriter.c b/subprojects/gst-plugins-bad/tests/check/libs/av1bitwriter.c
index ddabad4c66..379e3dff6e 100644
--- a/subprojects/gst-plugins-bad/tests/check/libs/av1bitwriter.c
+++ b/subprojects/gst-plugins-bad/tests/check/libs/av1bitwriter.c
@@ -279,7 +279,7 @@ static const GstAV1MetadataOBU hdr_cll = {
 GST_START_TEST (test_av1_bitwriter_sequence_and_frame_hdr)
 {
   GstAV1ParserResult res;
-  gboolean ret;
+  GstAV1BitWriterResult ret;
   guint size;
   guint i;
   GstAV1Parser *const parser = gst_av1_parser_new ();
@@ -445,7 +445,7 @@ GST_START_TEST (test_av1_bitwriter_sequence_and_frame_hdr)
   res = gst_av1_parser_parse_temporal_delimiter_obu (parser, &obu);
   assert_equals_int (res, GST_AV1_PARSER_OK);
 
-  ret = gst_av1_parser_reference_frame_update (parser, &frame_header);
+  res = gst_av1_parser_reference_frame_update (parser, &frame_header);
   assert_equals_int (res, GST_AV1_PARSER_OK);
 
   /* Inter frame */
@@ -538,7 +538,7 @@ GST_START_TEST (test_av1_bitwriter_sequence_and_frame_hdr)
     CHECK_FIELD (global_motion_params.gm_type[i]);
 #undef CHECK_FIELD
 
-  ret = gst_av1_parser_reference_frame_update (parser, &frame_header);
+  res = gst_av1_parser_reference_frame_update (parser, &frame_header);
   assert_equals_int (res, GST_AV1_PARSER_OK);
 
   /* Append a TD */
@@ -583,7 +583,7 @@ GST_END_TEST;
 GST_START_TEST (test_av1_bitwriter_metadata)
 {
   GstAV1ParserResult res;
-  gboolean ret;
+  GstAV1BitWriterResult ret;
   guint size;
   guint i;
   GstAV1Parser *const parser = gst_av1_parser_new ();
diff --git a/subprojects/gst-plugins-bad/tests/check/libs/h264bitwriter.c b/subprojects/gst-plugins-bad/tests/check/libs/h264bitwriter.c
index 402d783842..2b4e869a9e 100644
--- a/subprojects/gst-plugins-bad/tests/check/libs/h264bitwriter.c
+++ b/subprojects/gst-plugins-bad/tests/check/libs/h264bitwriter.c
@@ -163,7 +163,7 @@ static const GstH264SliceHdr slice_hdr = {
 GST_START_TEST (test_h264_bitwriter_sps_pps_slice_hdr)
 {
   GstH264ParserResult res;
-  gboolean ret;
+  GstH264BitWriterResult ret;
   GstH264NalUnit nalu;
   GstH264NalParser *const parser = gst_h264_nal_parser_new ();
   GstH264SPS sps_parsed;
@@ -383,7 +383,7 @@ GST_START_TEST (test_h264_bitwriter_sei)
   GstH264ParserResult res;
   GstH264NalUnit nalu;
   GstH264SEIMessage sei_msg = { 0, };
-  gboolean ret;
+  GstH264BitWriterResult ret;
   GstH264SPS sps_parsed;
   GstH264HRDParams *hrd_param = &sps_parsed.vui_parameters.nal_hrd_parameters;
   GstH264NalParser *const parser = gst_h264_nal_parser_new ();
diff --git a/subprojects/gst-plugins-bad/tests/check/libs/h265bitwriter.c b/subprojects/gst-plugins-bad/tests/check/libs/h265bitwriter.c
index 00377391e1..ea6a0b6d02 100644
--- a/subprojects/gst-plugins-bad/tests/check/libs/h265bitwriter.c
+++ b/subprojects/gst-plugins-bad/tests/check/libs/h265bitwriter.c
@@ -504,7 +504,7 @@ static const GstH265SliceHdr slice_hdr = {
 GST_START_TEST (test_h265_bitwriter_vps_sps_pps_slice_hdr)
 {
   GstH265ParserResult res;
-  gboolean ret;
+  GstH265BitWriterResult ret;
   GstH265NalUnit nalu;
   GstH265Parser *const parser = gst_h265_parser_new ();
   GstH265VPS vps_parsed;