diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 93127d6681..f8586705d9 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2009-05-21  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	* dwarf2read.c (set_cu_language): Recognize also DW_LANG_C99.
+
 2009-05-21  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	Fix parsing DW_AT_const_value using DW_FORM_string.
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index bb08841371..bcfbb1b691 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -6876,6 +6876,7 @@ set_cu_language (unsigned int lang, struct dwarf2_cu *cu)
   switch (lang)
     {
     case DW_LANG_C89:
+    case DW_LANG_C99:
     case DW_LANG_C:
       cu->language = language_c;
       break;