diff --git a/lapack/getf2/getf2_k.c b/lapack/getf2/getf2_k.c
index 11dea4439..168ece57c 100644
--- a/lapack/getf2/getf2_k.c
+++ b/lapack/getf2/getf2_k.c
@@ -37,6 +37,7 @@
 /*********************************************************************/
 
 #include <stdio.h>
+#include <float.h>
 #include "common.h"
 
 static FLOAT dp1 =  1.;