diff --git a/core/src/main/java/hudson/util/ProcessTree.java b/core/src/main/java/hudson/util/ProcessTree.java
index 4e2a4b3c1420..bbb9c5700082 100644
--- a/core/src/main/java/hudson/util/ProcessTree.java
+++ b/core/src/main/java/hudson/util/ProcessTree.java
@@ -1442,7 +1442,7 @@ private SolarisProcess(int pid) throws IOException {
                      * Read the remainder of psinfo_t differently depending on whether the
                      * Java process is 32-bit or 64-bit.
                      */
-                    if (Pointer.SIZE == 8) {
+                    if (Native.POINTER_SIZE == 8) {
                         psinfo.seek(236);  // offset of pr_argc
                         argc = adjust(psinfo.readInt());
                         argp = adjustL(psinfo.readLong());