diff --git a/OpenMP/linear-algebra/kernels/atax/atax.h b/OpenMP/linear-algebra/kernels/atax/atax.h
index 933c274..3e0b0d5 100644
--- a/OpenMP/linear-algebra/kernels/atax/atax.h
+++ b/OpenMP/linear-algebra/kernels/atax/atax.h
@@ -39,7 +39,7 @@
 # define _PB_NY POLYBENCH_LOOP_BOUND(NY,ny)
 
 # ifndef DATA_TYPE
-#  define DATA_TYPE double
+#  define DATA_TYPE float
 #  define DATA_PRINTF_MODIFIER "%0.2lf "
 # endif