diff --git a/ChangeLog b/ChangeLog
index cced43b4a2d94a5f5e075fbd6bd47cde76d53475..5dc8de35e359366df79f429ffdd35c4c9e42098c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2016-05-01  Jakub Jelinek  <jakub@redhat.com>
+
+	PR bootstrap/70704
+	* configure.ac (--enable-stage1-checking): Add missing
+	--enable-checking=.
+	* configure: Regenerated.
+
 2016-04-30  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	* config.guess: Revert r235676.
diff --git a/configure b/configure
index 3c1e99ae1feead7ef25fdcf024563a2c03a0b699..d17b477f127414bc14d5075fdbfa1c82678318c7 100755
--- a/configure
+++ b/configure
@@ -14857,7 +14857,7 @@ else
   if test "x$enable_checking" = x && \
      test -d ${srcdir}/gcc && \
      test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
-    stage1_checking=yes,types,extra
+    stage1_checking=--enable-checking=yes,types,extra
   fi
 else
   stage1_checking=--enable-checking=$enable_checking,types
diff --git a/configure.ac b/configure.ac
index df00ce219a40fbfa64ba76092769c28673cde55a..3aec655d219d844dfbf554cd4f752d18f833f337 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3537,7 +3537,7 @@ AC_ARG_ENABLE(stage1-checking,
   if test "x$enable_checking" = x && \
      test -d ${srcdir}/gcc && \
      test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
-    stage1_checking=yes,types,extra
+    stage1_checking=--enable-checking=yes,types,extra
   fi
 else
   stage1_checking=--enable-checking=$enable_checking,types