diff --git a/ChangeLog b/ChangeLog
index 0eb9bae7d0..f0512c524d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2017-10-20  Wilco Dijkstra  <wdijkstr@arm.com>
+
+	* malloc/malloc.c (sysdep-cancel.h): Add include.
+
 2017-10-20  Wilco Dijkstra  <wdijkstr@arm.com>
 
 	* malloc/malloc.c (_int_free): Add SINGLE_THREAD_P fast paths.
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 4db21cc8c1..32b6e968fc 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -243,6 +243,9 @@
 
 #include <malloc/malloc-internal.h>
 
+/* For SINGLE_THREAD_P.  */
+#include <sysdep-cancel.h>
+
 /*
   Debugging: