diff --git a/third-party/pjproject/patches/config_site.h b/third-party/pjproject/patches/config_site.h
index 07e4d97a92..f9f76dc6c9 100644
--- a/third-party/pjproject/patches/config_site.h
+++ b/third-party/pjproject/patches/config_site.h
@@ -4,6 +4,14 @@
 
 #include <sys/select.h>
 
+/*
+ * Defining PJMEDIA_HAS_SRTP to 0 does NOT disable Asterisk's ability to use srtp.
+ * It only disables the pjmedia srtp transport which Asterisk doesn't use.
+ * The reason for the disable is that while Asterisk works fine with older libsrtp
+ * versions, newer versions of pjproject won't compile with them.
+ */
+#define PJMEDIA_HAS_SRTP 0
+
 #define PJ_HAS_IPV6 1
 #define NDEBUG 1
 #define PJ_MAX_HOSTNAME (256)