diff --git a/config.m4 b/config.m4
index d59b73e..96bd755 100644
--- a/config.m4
+++ b/config.m4
@@ -22,7 +22,7 @@ if test "$PHP_MRLOOP" != "no"; then
   PHP_VERSION=$($PHP_CONFIG --vernum)
   AC_MSG_CHECKING([PHP version])
   if test $PHP_VERSION -lt 80100; then
-    AC_MSG_ERROR([ext-sbhttp requires PHP 8.1+])
+    AC_MSG_ERROR([ext-mrloop requires PHP 8.1+])
   else
     AC_MSG_RESULT([ok])
   fi