diff --git a/src/video_rxtx/rtp.cpp b/src/video_rxtx/rtp.cpp
index 5635515fb..f2fbad35a 100644
--- a/src/video_rxtx/rtp.cpp
+++ b/src/video_rxtx/rtp.cpp
@@ -271,7 +271,7 @@ void rtp_video_rxtx::display_buf_increase_warning(int size)
         log_msg(LOG_LEVEL_VERBOSE, "\n***\n"
                         "Unable to set buffer size to %d B.\n"
 #if defined WIN32
-                        "See https://github.com/CESNET/UltraGrid/wiki/Extending-Network-Buffers-%28Windows%29 for details.\n",
+                        "See https://github.com/CESNET/UltraGrid/wiki/Extending-Network-Buffers-%%28Windows%%29 for details.\n",
 #else
                         "Please set net.core.rmem_max value to %d or greater. (see also\n"
                         "https://github.com/CESNET/UltraGrid/wiki/OS-Setup-UltraGrid)\n"