diff --git a/doc/src/platforms/osx.qdoc b/doc/src/platforms/osx.qdoc
index cc0933973a1bae3a638c94ddcf9c21f3530ef299..0f33eb858dcf4eb1949038a1be64d687c1f2dcb9 100644
--- a/doc/src/platforms/osx.qdoc
+++ b/doc/src/platforms/osx.qdoc
@@ -63,19 +63,20 @@
 
     See \l{Supported Platforms} for the list of \macos versions supported by Qt.
 
-    Qt can be built for either x86 or x86_64. 64-bit is used by default.
-    To select a 32-bit build, use the \c QMAKE_APPLE_DEVICE_ARCHS \c qmake variable.
+    Qt can be built for either x86_64 or x86_64h (Haswell). x86_64 is used by default.
+    To select a x86_64h build, use the \c QMAKE_APPLE_DEVICE_ARCHS \c qmake variable.
     This is selectable at configure time:
     \code
-    ./configure -platform macx-clang QMAKE_APPLE_DEVICE_ARCHS=i386
+    ./configure -platform macx-clang QMAKE_APPLE_DEVICE_ARCHS=x86_64h
     \endcode
 
     \c QMAKE_APPLE_DEVICE_ARCHS can also be specified as a space-delimited list
     in order to build for multiple architectures simultaneously:
     \code
-    ./configure -platform macx-clang QMAKE_APPLE_DEVICE_ARCHS="i386 x86_64 x86_64h"
+    ./configure -platform macx-clang QMAKE_APPLE_DEVICE_ARCHS="x86_64 x86_64h"
     \endcode
 
+    \note Qt 5.10+ does not support 32-bit builds.
     \note Qt 5 does not support OS X on PowerPC.
     \note Static builds are not tested.