diff --git a/ANNOUNCE b/ANNOUNCE
index 99d6b8d2b..ed593245d 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -36,7 +36,7 @@ Version 1.6.28beta01 [January 3, 2017]
 Version 1.6.28beta02 [January 4, 2017]
   Added "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna).
   Moved SSE2 optimization code into the main libpng source directory.
-    Configure libpng with "configure --enable-intel-see" or compile
+    Configure libpng with "configure --enable-intel-sse" or compile
     libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
diff --git a/CHANGES b/CHANGES
index a4cf7aa16..27a7c79b8 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5785,7 +5785,7 @@ Version 1.6.28rc01 [January 3, 2017]
 Version 1.6.28rc02 [January 4, 2017]
   Added "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna).
   Moved SSE2 optimization code into the main libpng source directory.
-    Configure libpng with "configure --enable-intel-see" or compile
+    Configure libpng with "configure --enable-intel-sse" or compile
     libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net