diff --git a/engine/src/engine.zig b/engine/src/engine.zig
index 322756e..094f271 100644
--- a/engine/src/engine.zig
+++ b/engine/src/engine.zig
@@ -35,6 +35,7 @@ pub const BitWidth = Integer.BitWidth;
 pub const Environment = evaluator.Environment;
 pub const evalString = evaluator.evalString;
 pub const evalStringInfo = evaluator.evalStringInfo;
+pub const previewStringInfo = evaluator.previewStringInfo;
 pub const evalProgrammerString = programmer.evalProgrammerString;
 pub const FloatFormat = float_interp.FloatFormat;
 pub const UnitCategory = units.UnitCategory;