diff --git a/gcc/defaults.h b/gcc/defaults.h
index 4f43f6f0067..94c49bec57f 100644
--- a/gcc/defaults.h
+++ b/gcc/defaults.h
@@ -123,7 +123,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     {									\
       fprintf ((FILE), "\t%s\t", TLS_COMMON_ASM_OP);			\
       assemble_name ((FILE), (NAME));					\
-      fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",		\
+      fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",		\
 	       (SIZE), DECL_ALIGN (DECL) / BITS_PER_UNIT);		\
     }									\
   while (0)