diff --git a/make/autoconf/basic.m4 b/make/autoconf/basic.m4
index 5ec9238e77b..63b67f33c96 100644
--- a/make/autoconf/basic.m4
+++ b/make/autoconf/basic.m4
@@ -328,7 +328,7 @@ AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
     # Create a default ./build/target-variant-debuglevel output root.
     if test "x${CONF_NAME}" = x; then
       AC_MSG_RESULT([in default location])
-      CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JVM_VARIANTS_WITH_AND}-${DEBUG_LEVEL}"
+      CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${JVM_VARIANTS_WITH_AND}-${DEBUG_LEVEL}"
     else
       AC_MSG_RESULT([in build directory with custom name])
     fi