diff --git a/src/libs/cplusplus/FastPreprocessor.cpp b/src/libs/cplusplus/FastPreprocessor.cpp
index 1b66ecac79c..4a4c10d732b 100644
--- a/src/libs/cplusplus/FastPreprocessor.cpp
+++ b/src/libs/cplusplus/FastPreprocessor.cpp
@@ -34,7 +34,6 @@
 
 using namespace CPlusPlus;
 
-    TranslationUnit *_previousUnit;
 FastMacroResolver::FastMacroResolver(TranslationUnit *unit, const Snapshot &snapshot)
     : _unit(unit), _snapshot(snapshot)
 {