diff --git a/lib/Epub/Epub/hyphenation/HyphenationCommon.cpp b/lib/Epub/Epub/hyphenation/HyphenationCommon.cpp
index 99584fd..0a6b7a9 100644
--- a/lib/Epub/Epub/hyphenation/HyphenationCommon.cpp
+++ b/lib/Epub/Epub/hyphenation/HyphenationCommon.cpp
@@ -125,6 +125,8 @@ bool isExplicitHyphen(const uint32_t cp) {
     case 0xFE58:  // small em dash
     case 0xFE63:  // small hyphen-minus
     case 0xFF0D:  // fullwidth hyphen-minus
+    case 0x005F:  // Underscore
+    case 0x2026:  // Ellipsis
       return true;
     default:
       return false;