diff --git a/metadata/topics b/metadata/topics
--- a/metadata/topics
+++ b/metadata/topics
@@ -1,65 +1,66 @@
 Computer science
   Artificial intelligence
   Automata and formal languages
   Algorithms
     Graph
     Distributed
     Concurrent
     Online
     Geometry
     Approximation
     Mathematical
     Optimization
     Quantum computing
   Concurrency
     Process calculi
   Data structures
   Functional programming
   Hardware
   Machine learning
   Networks
   Programming languages
     Language definitions
     Lambda calculi
     Type systems
     Logics
     Compiling
     Static analysis
     Transformations
     Misc
   Security
     Cryptography
   Semantics
   System description languages
 Logic
   Philosophical aspects
   General logic
     Classical propositional logic
     Classical first-order logic
     Decidability of theories
     Mechanization of proofs
     Lambda calculus
     Logics of knowledge and belief
     Temporal logic
     Modal logic
     Paraconsistent logics
   Computability
   Set theory
   Proof theory
   Rewriting
 Mathematics
   Order
   Algebra
   Analysis
+  Measure theory
   Probability theory
   Number theory
   Games and economics
   Geometry
   Topology
   Graph theory
   Combinatorics
   Category theory
   Physics
     Quantum information
   Misc
 Tools