diff --git a/subprojects/gst-plugins-ugly/gst/asfdemux/gstasfdemux.c b/subprojects/gst-plugins-ugly/gst/asfdemux/gstasfdemux.c
index 3a6bc9a6b1..ef5f4f771d 100644
--- a/subprojects/gst-plugins-ugly/gst/asfdemux/gstasfdemux.c
+++ b/subprojects/gst-plugins-ugly/gst/asfdemux/gstasfdemux.c
@@ -2304,15 +2304,15 @@ gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
         GST_INFO_OBJECT (demux, "Chained asf starting");
         /* cleanup and get ready for a chained asf */
         gst_asf_demux_reset (demux, TRUE);
-        /* fall through */
       }
     }
+      /* FALLTHROUGH */
     case GST_ASF_DEMUX_STATE_HEADER:{
       ret = gst_asf_demux_chain_headers (demux);
       if (demux->state != GST_ASF_DEMUX_STATE_DATA)
         break;
-      /* otherwise fall through */
     }
+      /* FALLTHROUGH */
     case GST_ASF_DEMUX_STATE_DATA:
     {
       guint64 data_size;
diff --git a/subprojects/gst-plugins-ugly/gst/realmedia/rademux.c b/subprojects/gst-plugins-ugly/gst/realmedia/rademux.c
index aface5007e..01b12f4ceb 100644
--- a/subprojects/gst-plugins-ugly/gst/realmedia/rademux.c
+++ b/subprojects/gst-plugins-ugly/gst/realmedia/rademux.c
@@ -595,14 +595,14 @@ gst_real_audio_demux_handle_buffer (GstRealAudioDemux * demux, GstBuffer * buf)
       ret = gst_real_audio_demux_parse_marker (demux);
       if (ret != GST_FLOW_OK || demux->state != REAL_AUDIO_DEMUX_STATE_HEADER)
         break;
-      /* otherwise fall through */
     }
+      /* FALLTHROUGH */
     case REAL_AUDIO_DEMUX_STATE_HEADER:{
       ret = gst_real_audio_demux_parse_header (demux);
       if (ret != GST_FLOW_OK || demux->state != REAL_AUDIO_DEMUX_STATE_DATA)
         break;
-      /* otherwise fall through */
     }
+      /* FALLTHROUGH */
     case REAL_AUDIO_DEMUX_STATE_DATA:{
       ret = gst_real_audio_demux_parse_data (demux);
       break;
diff --git a/subprojects/gst-plugins-ugly/meson.build b/subprojects/gst-plugins-ugly/meson.build
index 85ee42b69e..51f0febe0d 100644
--- a/subprojects/gst-plugins-ugly/meson.build
+++ b/subprojects/gst-plugins-ugly/meson.build
@@ -244,19 +244,22 @@ else
 endif
 
 warning_flags = [
-  '-Wmissing-declarations',
-  '-Wredundant-decls',
-  '-Wwrite-strings',
+  '-Waddress',
+  '-Waggregate-return',
   '-Wformat',
   '-Wformat-nonliteral',
   '-Wformat-security',
+  '-Wimplicit-fallthrough=3',
   '-Winit-self',
+  '-Wmissing-declarations',
   '-Wmissing-include-dirs',
-  '-Waddress',
   '-Wno-multichar',
-  '-Wvla',
   '-Wpointer-arith',
-  '-Waggregate-return',
+  '-Wredundant-decls',
+  '-Wshift-negative-value',
+  '-Wtype-limits',
+  '-Wvla',
+  '-Wwrite-strings',
   '-fno-strict-aliasing',
   # Symbol visibility
   '-fvisibility=hidden',