diff --git a/ext-profiler/example/event.h b/ext-profiler/example/event.h
index 4c1b8f53a9..9faccbea9c 100644
--- a/ext-profiler/example/event.h
+++ b/ext-profiler/example/event.h
@@ -12,7 +12,7 @@
 #include <unistd.h>
 #include "profiler.h"
 
-#define MAX_CHANNELS                     32
+#define MAX_CHANNELS                     128 // Match RCCL's MAXCHANNELS
 #define MAX_STEPS                        16
 #define MAX_OPS                          16 // Up to 64K ranks for PAT
 #define MAX_EVENTS_PER_REQ               (8)