diff --git a/ext-profiler/example/nccl/profiler.h b/ext-profiler/example/nccl/profiler.h
index 715885f72..6db5b7f7b 100644
--- a/ext-profiler/example/nccl/profiler.h
+++ b/ext-profiler/example/nccl/profiler.h
@@ -11,6 +11,7 @@
 #include <stdlib.h>
 
 #include "common.h"
+#include "err.h"
 
 enum {
   ncclProfileGroup          = (1 << 0),  // group event type
diff --git a/ext-profiler/google-CoMMA/Makefile b/ext-profiler/google-CoMMA/Makefile
index 2da516990..ad5370b23 100644
--- a/ext-profiler/google-CoMMA/Makefile
+++ b/ext-profiler/google-CoMMA/Makefile
@@ -3,7 +3,7 @@
 all: build-CoMMA
 
 build-CoMMA: clone-CoMMA
-	cd CoMMA && cargo build
+	cd CoMMA && cargo build --release
 
 clone-CoMMA:
 	@if [ ! -d CoMMA ] ; then \