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-rw-r--r--src/libexpr/parser.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libexpr/parser.cc b/src/libexpr/parser.cc
index b9e79e13d5f1..83b656342ff8 100644
--- a/src/libexpr/parser.cc
+++ b/src/libexpr/parser.cc
@@ -26,6 +26,8 @@ struct Cleanup : TermFun
 
     virtual ATerm operator () (ATerm e)
     {
+        checkInterrupt();
+        
         ATMatcher m;
         string s;