diff --git a/Eigen/src/Core/arch/SSE/MathFunctions.h b/Eigen/src/Core/arch/SSE/MathFunctions.h
index 9d56d8218..31b27786e 100644
--- a/Eigen/src/Core/arch/SSE/MathFunctions.h
+++ b/Eigen/src/Core/arch/SSE/MathFunctions.h
@@ -121,7 +121,7 @@ Packet4f pexp<Packet4f>(const Packet4f& _x)
   _EIGEN_DECLARE_CONST_Packet4i(0x7f, 0x7f);
 
 
-  _EIGEN_DECLARE_CONST_Packet4f(exp_hi, 88.3762626647949f);
+  _EIGEN_DECLARE_CONST_Packet4f(exp_hi,  88.3762626647950f);
   _EIGEN_DECLARE_CONST_Packet4f(exp_lo, -88.3762626647949f);
 
   _EIGEN_DECLARE_CONST_Packet4f(cephes_LOG2EF, 1.44269504088896341f);
@@ -168,7 +168,7 @@ Packet4f pexp<Packet4f>(const Packet4f& _x)
   y = pmadd(y, z, x);
   y = padd(y, p4f_1);
 
-  /* build 2^n */
+  // build 2^n
   emm0 = _mm_cvttps_epi32(fx);
   emm0 = _mm_add_epi32(emm0, p4i_0x7f);
   emm0 = _mm_slli_epi32(emm0, 23);