diff --git a/toolchain/check/import_cpp.cpp b/toolchain/check/import_cpp.cpp
index f288f49f5fc2..768c4af98f4e 100644
--- a/toolchain/check/import_cpp.cpp
+++ b/toolchain/check/import_cpp.cpp
@@ -1088,7 +1088,7 @@ static auto MapBuiltinType(Context& context, SemIR::LocId loc_id,
     if (context.ast_context().hasSameType(qual_type, int_n_type)) {
       TypeExpr type_expr =
           MakeIntType(context, context.ints().Add(width), is_signed);
-      // Try to make sure signed integer of 32 or 64 bits are complete so we can
+      // Try to make sure integer types of 32 or 64 bits are complete so we can
       // check against them when deciding whether we need to generate a thunk.
       if (width == 32 || width == 64) {
         SemIR::TypeId type_id = type_expr.type_id;