diff --git a/lldb/tools/intel-features/intel-mpx/cli-wrapper-mpxtable.cpp b/lldb/tools/intel-features/intel-mpx/cli-wrapper-mpxtable.cpp
index d2ef0445bc67..b19d8b7387bb 100644
--- a/lldb/tools/intel-features/intel-mpx/cli-wrapper-mpxtable.cpp
+++ b/lldb/tools/intel-features/intel-mpx/cli-wrapper-mpxtable.cpp
@@ -64,12 +64,12 @@ static void PrintBTEntry(lldb::addr_t lbound, lldb::addr_t ubound,
   const lldb::addr_t one_cmpl32 = ~((uint32_t)0);
 
   if ((lbound == one_cmpl64 || one_cmpl32) && ubound == 0) {
-    result.Printf("Null bounds on map: pointer value = 0x%lx\n", value);
+    result.Printf("Null bounds on map: pointer value = 0x%" PRIu64 "\n", value);
   } else {
-    result.Printf("    lbound = 0x%lx,", lbound);
-    result.Printf(" ubound = 0x%lx", ubound);
-    result.Printf(" (pointer value = 0x%lx,", value);
-    result.Printf(" metadata = 0x%lx)\n", meta);
+    result.Printf("    lbound = 0x%" PRIu64 ",", lbound);
+    result.Printf(" ubound = 0x%" PRIu64 , ubound);
+    result.Printf(" (pointer value = 0x%" PRIu64 ",", value);
+    result.Printf(" metadata = 0x%" PRIu64 ")\n", meta);
   }
 }