diff --git a/toolkit/Makefile b/toolkit/Makefile
index a194ccd08..01a3cd83a 100644
--- a/toolkit/Makefile
+++ b/toolkit/Makefile
@@ -2,16 +2,16 @@ export CC  = gcc
 export CXX = g++
 export MPICXX = mpicxx
 export LDFLAGS= -pthread -lm -L../lib
-export CFLAGS = -Wall -O3 -msse2  -Wno-unknown-pragmas -fPIC -I../include -std=c++11
+export CFLAGS = -Wall -O3 -msse2  -Wno-unknown-pragmas -fPIC -I../include 
 
 # specify tensor path
-BIN = kmeans
+BIN = kmeans.rabit
 # objectives that makes up rabit library
 OBJ = kmeans.o
 MPIBIN = kmeans.mpi
 .PHONY: clean all lib
 
-all: $(BIN) $(MPIBIN) 
+all: $(BIN) 
 
 lib:
 	cd ..;make;cd -
@@ -19,7 +19,7 @@ lib:
 kmeans.o: kmeans.cpp ../src/*.h
 
 # we can link against MPI version to get use MPI
-kmeans: kmeans.o lib
+kmeans.rabit: kmeans.o lib
 kmeans.mpi: kmeans.o lib
 
 $(BIN) : 
diff --git a/toolkit/kmeans.cpp b/toolkit/kmeans.cpp
index 11f191625..e6be48fc0 100644
--- a/toolkit/kmeans.cpp
+++ b/toolkit/kmeans.cpp
@@ -115,7 +115,10 @@ int main(int argc, char *argv[]) {
   Matrix temp;
   for (int r = iter; r < max_iter; ++r) {    
     temp.Init(num_cluster, num_feat + 1, 0.0f);    
-    auto lazy_get_centroid = [&]() {
+#if __cplusplus >= 201103L    
+    auto lazy_get_centroid = [&]()
+#endif
+    {
       // lambda function used to calculate the data if necessary
       // this function may not be called when the result can be directly recovered
       const size_t ndata = data.NumRow();
@@ -131,7 +134,11 @@ int main(int argc, char *argv[]) {
       }
     };
     // call allreduce
+#if __cplusplus >= 201103L
     rabit::Allreduce<op::Sum>(&temp.data[0], temp.data.size(), lazy_get_centroid);
+#else
+    rabit::Allreduce<op::Sum>(&temp.data[0], temp.data.size());
+#endif
     // set number
     for (int k = 0; k < num_cluster; ++k) {
       float cnt = temp[k][num_feat];
diff --git a/toolkit/kmeans_hadoop.sh b/toolkit/kmeans_hadoop.sh
index bcd9adb3a..d9a86bddd 100755
--- a/toolkit/kmeans_hadoop.sh
+++ b/toolkit/kmeans_hadoop.sh
@@ -6,4 +6,4 @@ then
 fi
 #set path to hadoop streaming jar here
 STREAMING_JAR=
-python ../rabit_hadoop.py -hs $STREAMING_JAR -s $1 -i $2  -m kmeans --args "stdin "$3" "$4" stdout" -o $5
+python ../rabit_hadoop.py -hs $STREAMING_JAR -s $1 -i $2  -m kmeans.rabit --args "stdin "$3" "$4" stdout" -o $5