--- a/configure.in
+++ b/configure.in
@@ -6231,18 +6231,18 @@ dnl ====================================
 dnl Installer
 dnl ========================================================
 dnl Abort Windows build if the required major version and
 dnl minimum minor version of Unicode NSIS isn't in the path
 dnl (unless in case of cross compiling, for which Unicode
 dnl is not yet sufficient).
 if test "$OS_ARCH" = "WINNT"; then
     REQ_NSIS_MAJOR_VER=2
-    MIN_NSIS_MINOR_VER=33
-    MOZ_PATH_PROGS(MAKENSISU, $MAKENSISU makensisu-2.46 makensisu makensis)
+    MIN_NSIS_MINOR_VER=46
+    MOZ_PATH_PROGS(MAKENSISU, $MAKENSISU makensisu-2.46 makensis)
     if test -n "$MAKENSISU" -a "$MAKENSISU" != ":"; then
       AC_MSG_RESULT([yes])
       changequote(,)
       MAKENSISU_VER=`"$MAKENSISU" -version 2>/dev/null | sed -e '/-Unicode/!s/.*//g' -e 's/^v\([0-9]\+\.[0-9]\+\)\-Unicode$/\1/g'`
       changequote([,])
       if test ! "$MAKENSISU_VER" = ""; then
           MAKENSISU_MAJOR_VER=`echo $MAKENSISU_VER | $AWK -F\. '{ print $1 }'`
           MAKENSISU_MINOR_VER=`echo $MAKENSISU_VER | $AWK -F\. '{ print $2 }'`