diff --git a/build-aux/check-mescc.sh b/build-aux/check-mescc.sh
index eec0e4ec..e27d81d8 100755
--- a/build-aux/check-mescc.sh
+++ b/build-aux/check-mescc.sh
@@ -253,12 +253,6 @@ lib/tests/scaffold/a0-call-trunc-int.c
     fi
 fi
 
-if test $mes_cpu = x86; then
-    XFAIL_TESTS="$XFAIL_TESTS
-lib/tests/mes/90-dtoab.c
-"
-fi
-
 if test $mes_cpu = x86_64; then
     XFAIL_TESTS="$XFAIL_TESTS
 lib/tests/stdio/70-printf-stdarg.c
@@ -268,6 +262,7 @@ fi
 if test $compiler = gcc; then
     XFAIL_TESTS="$XFAIL_TESTS
 lib/tests/mes/90-abtod.c
+lib/tests/mes/90-dtoab.c
 "
 
     if test $mes_cpu = x86; then
diff --git a/lib/mes/dtoab.c b/lib/mes/dtoab.c
index dc190503..effaf9be 100644
--- a/lib/mes/dtoab.c
+++ b/lib/mes/dtoab.c
@@ -29,7 +29,7 @@ dtoab (double d, int base, int signed_p)
   long i = (long) d;
   char *p = ntoab (i, base, signed_p);
   strcpy (dtoa_buf, p);
-  long f = (d - (double) i) * (double) 100000000000;
+  long f = (d - (double) i) * (double) 100000000;
   if (f)
     {
       if (f < 0)
diff --git a/lib/tests/mes/90-dtoab.c b/lib/tests/mes/90-dtoab.c
index 1f7e29d1..f6c1268d 100644
--- a/lib/tests/mes/90-dtoab.c
+++ b/lib/tests/mes/90-dtoab.c
@@ -28,7 +28,7 @@ main ()
   char *p = dtoab (d, 10, 1);
   puts (p);
 
-  d = -3.141592653589;
+  d = -3.14159265;
   p = dtoab (d, 10, 1);
   puts (p);
 
diff --git a/lib/tests/mes/90-dtoab.stdout b/lib/tests/mes/90-dtoab.stdout
index 88609219..e9ef95b2 100644
--- a/lib/tests/mes/90-dtoab.stdout
+++ b/lib/tests/mes/90-dtoab.stdout
@@ -1,2 +1,2 @@
 1.23
--3.14159265358
+-3.14159265