diff --git a/demos/optical_bench/src/lens.cpp b/demos/optical_bench/src/lens.cpp
index 8848652a3b90f2d4d4fd59228d5505f5a06ce81e..fac1756b7778f59723e574734c0202087fbcacfc 100644
--- a/demos/optical_bench/src/lens.cpp
+++ b/demos/optical_bench/src/lens.cpp
@@ -186,7 +186,7 @@ std::string Lens::GetGlassTypeName() {
     case SF11:
       return "SF11";
     case FUSED_SILICA:
-      return "Fused Silica";
+      return "Fus.Sil.";
     case SK16:
       return "SK16";
     case F2: