diff --git a/src/core/ddsi/include/dds/ddsi/q_protocol.h b/src/core/ddsi/include/dds/ddsi/q_protocol.h
index 1ffb559..b03d0ea 100644
--- a/src/core/ddsi/include/dds/ddsi/q_protocol.h
+++ b/src/core/ddsi/include/dds/ddsi/q_protocol.h
@@ -103,13 +103,6 @@ typedef struct {
 #define NN_DISC_BUILTIN_ENDPOINT_PARTICIPANT_SECURE_ANNOUNCER (1u << 26)
 #define NN_DISC_BUILTIN_ENDPOINT_PARTICIPANT_SECURE_DETECTOR (1u << 27)
 
-/* PrismTech extensions: */
-#define NN_DISC_BUILTIN_ENDPOINT_CM_PARTICIPANT_WRITER (1u << 0)
-#define NN_DISC_BUILTIN_ENDPOINT_CM_PARTICIPANT_READER (1u << 1)
-#define NN_DISC_BUILTIN_ENDPOINT_CM_PUBLISHER_WRITER (1u << 2)
-#define NN_DISC_BUILTIN_ENDPOINT_CM_PUBLISHER_READER (1u << 3)
-#define NN_DISC_BUILTIN_ENDPOINT_CM_SUBSCRIBER_WRITER (1u << 4)
-#define NN_DISC_BUILTIN_ENDPOINT_CM_SUBSCRIBER_READER (1u << 5)
 
 #define NN_LOCATOR_KIND_INVALID -1
 #define NN_LOCATOR_KIND_RESERVED 0