diff --git a/platform/platform-api/src/com/intellij/lexer/DelegateLexer.java b/platform/core-api/src/com/intellij/lexer/DelegateLexer.java
similarity index 100%
rename from platform/platform-api/src/com/intellij/lexer/DelegateLexer.java
rename to platform/core-api/src/com/intellij/lexer/DelegateLexer.java
diff --git a/platform/lang-api/src/com/intellij/lexer/FlexLexer.java b/platform/core-api/src/com/intellij/lexer/FlexLexer.java
similarity index 100%
rename from platform/lang-api/src/com/intellij/lexer/FlexLexer.java
rename to platform/core-api/src/com/intellij/lexer/FlexLexer.java
diff --git a/platform/lang-api/src/com/intellij/lexer/MergingLexerAdapter.java b/platform/core-api/src/com/intellij/lexer/MergingLexerAdapter.java
similarity index 100%
rename from platform/lang-api/src/com/intellij/lexer/MergingLexerAdapter.java
rename to platform/core-api/src/com/intellij/lexer/MergingLexerAdapter.java
diff --git a/platform/lang-api/src/com/intellij/lexer/MergingLexerAdapterBase.java b/platform/core-api/src/com/intellij/lexer/MergingLexerAdapterBase.java
similarity index 100%
rename from platform/lang-api/src/com/intellij/lexer/MergingLexerAdapterBase.java
rename to platform/core-api/src/com/intellij/lexer/MergingLexerAdapterBase.java