diff --git a/ChangeLog b/ChangeLog
index 995720ec69..6c6caab25d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2016-10-28  Carlos O'Donell  <carlos@redhat.com>
+
+	* math/test-nan-overflow.c: Include stdlib.h for malloc.
+
 2016-10-28  H.J. Lu  <hongjiu.lu@intel.com>
 
 	[BZ #20019]
diff --git a/math/test-nan-overflow.c b/math/test-nan-overflow.c
index 40aae2ed14..745a044b96 100644
--- a/math/test-nan-overflow.c
+++ b/math/test-nan-overflow.c
@@ -20,6 +20,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <sys/resource.h>
+#include <stdlib.h>
 
 #define STACK_LIM 1048576
 #define STRING_SIZE (2 * STACK_LIM)