diff --git a/gloo/context.cc b/gloo/context.cc
index fd9b83c7b..10a41271a 100644
--- a/gloo/context.cc
+++ b/gloo/context.cc
@@ -8,7 +8,6 @@
 
 #include "gloo/context.h"
 
-#include "gloo/common/error.h"
 #include "gloo/common/logging.h"
 #include "gloo/transport/device.h"
 #include "gloo/transport/unbound_buffer.h"
diff --git a/gloo/cuda_allreduce_bcube.cc b/gloo/cuda_allreduce_bcube.cc
index 065862f95..33a67eb6e 100644
--- a/gloo/cuda_allreduce_bcube.cc
+++ b/gloo/cuda_allreduce_bcube.cc
@@ -14,7 +14,6 @@
 
 #include <sstream>
 #ifndef _WIN32
-#include <unistd.h>
 #endif
 
 #ifdef DEBUG
diff --git a/gloo/cuda_allreduce_ring_chunked.cc b/gloo/cuda_allreduce_ring_chunked.cc
index d5b1ec610..a04de4359 100644
--- a/gloo/cuda_allreduce_ring_chunked.cc
+++ b/gloo/cuda_allreduce_ring_chunked.cc
@@ -9,7 +9,6 @@
 #include "gloo/cuda_allreduce_ring_chunked.h"
 
 #include "gloo/cuda_collectives_device.h"
-#include "gloo/cuda_collectives_host.h"
 #include "gloo/cuda_private.h"
 
 namespace gloo {