diff --git a/kernels/src/reduce.cu b/kernels/src/reduce.cu
index 76dbbdc3..e1ed57ab 100644
--- a/kernels/src/reduce.cu
+++ b/kernels/src/reduce.cu
@@ -44,7 +44,7 @@ extern "C" __global__ void FN_NAME(  \
 } \
 
 #if __CUDA_ARCH__ >= 530
-SUM_OP(float, sum_f32)
+SUM_OP(__half, sum_f16)
 #endif
 
 SUM_OP(float, sum_f32)