diff --git a/ext/mplex/gstmplex.cc b/ext/mplex/gstmplex.cc
index 253e9cf31a..ae08e2e19e 100644
--- a/ext/mplex/gstmplex.cc
+++ b/ext/mplex/gstmplex.cc
@@ -755,7 +755,7 @@ gst_mplex_log_callback (log_level_t level, const char *message)
 {
   GstDebugLevel gst_level;
 
-#if GST_MJPEGTOOLS_API >= 10903
+#if GST_MJPEGTOOLS_API >= 10900
   static const gint mjpeg_log_error = mjpeg_loglev_t ("error");
   static const gint mjpeg_log_warn = mjpeg_loglev_t ("warn");
   static const gint mjpeg_log_info = mjpeg_loglev_t ("info");