diff --git a/src/cons/GNUmakefile b/src/cons/GNUmakefile
index 14b012c5d0..40df689685 100644
--- a/src/cons/GNUmakefile
+++ b/src/cons/GNUmakefile
@@ -3,6 +3,7 @@
   
   OBJ = cons_input.o cons.o cons_utils.o cons_springs.o cons_rtdb.o cons_data.o
  
+  USES_BLAS = cons_data.F