diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 7de4153e4b..8cb45b81a5 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2015-11-03  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* arm-linux-nat.c (arm_linux_read_description): Add cast.
+
 2015-11-03  Simon Marchi  <simon.marchi@polymtl.ca>
 
 	* ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint): Change
diff --git a/gdb/arm-linux-nat.c b/gdb/arm-linux-nat.c
index a63b181697..63fdae13ca 100644
--- a/gdb/arm-linux-nat.c
+++ b/gdb/arm-linux-nat.c
@@ -575,7 +575,7 @@ arm_linux_read_description (struct target_ops *ops)
 	 registers.  Support was added in 2.6.30.  */
       pid = ptid_get_lwp (inferior_ptid);
       errno = 0;
-      buf = alloca (VFP_REGS_SIZE);
+      buf = (char *) alloca (VFP_REGS_SIZE);
       if (ptrace (PTRACE_GETVFPREGS, pid, 0, buf) < 0
 	  && errno == EIO)
 	result = NULL;