diff --git a/plugins/spellchecker/src/com/intellij/spellchecker/inspections/TextSplitter.java b/plugins/spellchecker/src/com/intellij/spellchecker/inspections/TextSplitter.java
index ea7c75820e70..6327114829a9 100644
--- a/plugins/spellchecker/src/com/intellij/spellchecker/inspections/TextSplitter.java
+++ b/plugins/spellchecker/src/com/intellij/spellchecker/inspections/TextSplitter.java
@@ -31,7 +31,7 @@ public class TextSplitter extends BaseSplitter {
     return INSTANCE;
   }
 
-  private static final Pattern EXTENDED_WORD_AND_SPECIAL = Pattern.compile("([&#]|0x[0-9]*)?\\p{L}+'?\\p{L}(_*\\p{L})*");
+  private static final Pattern EXTENDED_WORD_AND_SPECIAL = Pattern.compile("([&#]|0x[0-9]*)?\\p{L}+'?\\p{L}[_\\p{L}]*");
 
   @Override
   public void split(@Nullable String text, @NotNull TextRange range, Consumer<TextRange> consumer) {