diff --git a/src/share/tools/MakeDeps/BuildConfig.java b/src/share/tools/MakeDeps/BuildConfig.java
index 442972dab9cc872fc8b6e86bebf108a60b6958dd..accdab675502f68384e93e65859f5596ebfc038d 100644
--- a/src/share/tools/MakeDeps/BuildConfig.java
+++ b/src/share/tools/MakeDeps/BuildConfig.java
@@ -247,6 +247,7 @@ class BuildConfig {
         sysDefines.add("HOTSPOT_BUILD_USER="+System.getProperty("user.name"));
         sysDefines.add("HOTSPOT_BUILD_TARGET=\\\""+get("Build")+"\\\"");
         sysDefines.add("_JNI_IMPLEMENTATION_");
+        sysDefines.add("HOTSPOT_LIB_ARCH=\\\"i486\\\"");
 
         sysDefines.addAll(defines);