diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9d46948c5c6..fc64c9ddef2 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2016-09-05  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* ada-lang.c (ada_language_arch_info): Use gdbarch_long_double_bit
+	instead of gdbarch_double_bit for "long_long_float".
+
 2016-09-05  Pedro Alves  <palves@redhat.com>
 
 	* NEWS: Mention that a C++ compiler is now required.
diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 05bfd7b34c7..b8cc982a434 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -14012,7 +14012,7 @@ ada_language_arch_info (struct gdbarch *gdbarch,
     = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch),
 			 0, "long_long_integer");
   lai->primitive_type_vector [ada_primitive_type_long_double]
-    = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch),
+    = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch),
 		       "long_long_float", NULL);
   lai->primitive_type_vector [ada_primitive_type_natural]
     = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),