diff --git a/ocl-stream-kernels.cl b/ocl-stream-kernels.cl
index eeb47f4..971d852 100644
--- a/ocl-stream-kernels.cl
+++ b/ocl-stream-kernels.cl
@@ -1,14 +1,14 @@
 
 #ifdef FLOAT
 	#define DATATYPE float
+	constant DATATYPE scalar = 3.0f;
 #else
 	#pragma OPENCL EXTENSION cl_khr_fp64 : enable
 	#define DATATYPE double
+	constant DATATYPE scalar = 3.0;
 #endif
 
 
-constant DATATYPE scalar = 3.0;
-
 kernel void copy(global const DATATYPE * restrict a, global DATATYPE * restrict c)
 {
 	const size_t i = get_global_id(0);