diff --git a/lapack/getf2/zgetf2_k.c b/lapack/getf2/zgetf2_k.c
index 3cc60fff8..f3412f52f 100644
--- a/lapack/getf2/zgetf2_k.c
+++ b/lapack/getf2/zgetf2_k.c
@@ -37,6 +37,7 @@
 /*********************************************************************/
 
 #include <stdio.h>
+#include <float.h>
 #include "common.h"
 
 double fabs(double);