diff --git a/tools/gdbinit b/tools/gdbinit
index ad7847df31..53ead3e881 100644
--- a/tools/gdbinit
+++ b/tools/gdbinit
@@ -138,7 +138,13 @@ Find the location of a given address in V8 pages.
 Usage: heap_find address
 end
 
-set disassembly-flavor intel
+# The 'disassembly-flavor' command is only available on i386 and x84_64.
+python
+try:
+  gdb.execute("set disassembly-flavor intel")
+except gdb.error:
+  pass
+end
 set disable-randomization off
 
 # Install a handler whenever the debugger stops due to a signal. It walks up the