diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index a4a9718ab95f..1ac811c7eb00 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -974,7 +974,7 @@ class InheritanceConversionInstruction extends UnaryInstruction {
 
 /**
  * Represents an instruction that converts from the address of a derived class
- * to the address of a direct non-virtual base class.
+ * to the address of a base class.
  */
 class ConvertToBaseInstruction extends InheritanceConversionInstruction {
   ConvertToBaseInstruction() { getOpcode() instanceof ConvertToBaseOpcode }
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
index a4a9718ab95f..1ac811c7eb00 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
@@ -974,7 +974,7 @@ class InheritanceConversionInstruction extends UnaryInstruction {
 
 /**
  * Represents an instruction that converts from the address of a derived class
- * to the address of a direct non-virtual base class.
+ * to the address of a base class.
  */
 class ConvertToBaseInstruction extends InheritanceConversionInstruction {
   ConvertToBaseInstruction() { getOpcode() instanceof ConvertToBaseOpcode }
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
index a4a9718ab95f..1ac811c7eb00 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -974,7 +974,7 @@ class InheritanceConversionInstruction extends UnaryInstruction {
 
 /**
  * Represents an instruction that converts from the address of a derived class
- * to the address of a direct non-virtual base class.
+ * to the address of a base class.
  */
 class ConvertToBaseInstruction extends InheritanceConversionInstruction {
   ConvertToBaseInstruction() { getOpcode() instanceof ConvertToBaseOpcode }
diff --git a/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll b/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll
index a4a9718ab95f..1ac811c7eb00 100644
--- a/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll
+++ b/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll
@@ -974,7 +974,7 @@ class InheritanceConversionInstruction extends UnaryInstruction {
 
 /**
  * Represents an instruction that converts from the address of a derived class
- * to the address of a direct non-virtual base class.
+ * to the address of a base class.
  */
 class ConvertToBaseInstruction extends InheritanceConversionInstruction {
   ConvertToBaseInstruction() { getOpcode() instanceof ConvertToBaseOpcode }
diff --git a/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll b/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll
index a4a9718ab95f..1ac811c7eb00 100644
--- a/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -974,7 +974,7 @@ class InheritanceConversionInstruction extends UnaryInstruction {
 
 /**
  * Represents an instruction that converts from the address of a derived class
- * to the address of a direct non-virtual base class.
+ * to the address of a base class.
  */
 class ConvertToBaseInstruction extends InheritanceConversionInstruction {
   ConvertToBaseInstruction() { getOpcode() instanceof ConvertToBaseOpcode }