diff --git a/src/node_counters.cc b/src/node_counters.cc
index ca05e25319..c8d2959091 100644
--- a/src/node_counters.cc
+++ b/src/node_counters.cc
@@ -11,8 +11,6 @@ namespace node {
 using v8::FunctionCallbackInfo;
 using v8::FunctionTemplate;
 using v8::GCCallbackFlags;
-using v8::GCEpilogueCallback;
-using v8::GCPrologueCallback;
 using v8::GCType;
 using v8::HandleScope;
 using v8::Isolate;
diff --git a/src/node_dtrace.cc b/src/node_dtrace.cc
index 568972bab3..2572bbee58 100644
--- a/src/node_dtrace.cc
+++ b/src/node_dtrace.cc
@@ -34,8 +34,6 @@ namespace node {
 using v8::FunctionCallbackInfo;
 using v8::FunctionTemplate;
 using v8::GCCallbackFlags;
-using v8::GCEpilogueCallback;
-using v8::GCPrologueCallback;
 using v8::GCType;
 using v8::HandleScope;
 using v8::Isolate;
diff --git a/src/node_lttng.cc b/src/node_lttng.cc
index 876bcda92f..b70f6ca809 100644
--- a/src/node_lttng.cc
+++ b/src/node_lttng.cc
@@ -29,8 +29,6 @@ namespace node {
 using v8::FunctionCallbackInfo;
 using v8::FunctionTemplate;
 using v8::GCCallbackFlags;
-using v8::GCEpilogueCallback;
-using v8::GCPrologueCallback;
 using v8::GCType;
 using v8::HandleScope;
 using v8::Isolate;