diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/InstructionTag.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/InstructionTag.qll
index 122a23b76a0..ce25dce9340 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/InstructionTag.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/InstructionTag.qll
@@ -217,4 +217,8 @@ string getInstructionTagId(TInstructionTag tag) {
   tag = DynamicInitializationFlagConstantTag() and result = "DynInitFlagConst"
   or
   tag = DynamicInitializationFlagStoreTag() and result = "DynInitFlagStore"
+  or
+  tag = ThisAddressTag() and result = "ThisAddres"
+  or
+  tag = ThisLoadTag() and result = "ThisLoad"
 }