diff --git a/subprojects/gst-plugins-base/gst-libs/gst/video/video-frame.c b/subprojects/gst-plugins-base/gst-libs/gst/video/video-frame.c
index bfb57e47e1..fdd1b89de0 100644
--- a/subprojects/gst-plugins-base/gst-libs/gst/video/video-frame.c
+++ b/subprojects/gst-plugins-base/gst-libs/gst/video/video-frame.c
@@ -39,7 +39,7 @@ video_frame_get_perf_category (void)
   static GstDebugCategory *cat = NULL;
 
   if (g_once_init_enter (&cat)) {
-    GstDebugCategory *c;
+    GstDebugCategory *c = NULL;
 
     GST_DEBUG_CATEGORY_GET (c, "GST_PERFORMANCE");
     g_once_init_leave (&cat, c);
diff --git a/subprojects/gstreamer/tests/check/gst/gstinfo.c b/subprojects/gstreamer/tests/check/gst/gstinfo.c
index dba7d63cac..8615e4802a 100644
--- a/subprojects/gstreamer/tests/check/gst/gstinfo.c
+++ b/subprojects/gstreamer/tests/check/gst/gstinfo.c
@@ -516,8 +516,8 @@ GST_END_TEST;
 
 GST_START_TEST (info_set_and_reset_string)
 {
-  GstDebugCategory *states;
-  GstDebugCategory *caps;
+  GstDebugCategory *states = NULL;
+  GstDebugCategory *caps = NULL;
   GstDebugLevel cat;
 
   GST_DEBUG_CATEGORY_GET (states, "GST_STATES");