diff --git a/src/avalanche/proof.cpp b/src/avalanche/proof.cpp
--- a/src/avalanche/proof.cpp
+++ b/src/avalanche/proof.cpp
@@ -122,7 +122,7 @@
         const CPubKey &pubkey = s.getPubkey();
         if (*pkhash != PKHash(pubkey)) {
             // Wrong pubkey.
-            return state.Invalid(ProofValidationResult::DESTINATION_MISMACTCH);
+            return state.Invalid(ProofValidationResult::DESTINATION_MISMATCH);
         }
     }
 
diff --git a/src/avalanche/test/proof_tests.cpp b/src/avalanche/test/proof_tests.cpp
--- a/src/avalanche/test/proof_tests.cpp
+++ b/src/avalanche/test/proof_tests.cpp
@@ -408,7 +408,7 @@
     {
         CKey altkey;
         altkey.MakeNewKey(true);
-        runCheck(ProofValidationResult::DESTINATION_MISMACTCH, pkh_outpoint,
+        runCheck(ProofValidationResult::DESTINATION_MISMATCH, pkh_outpoint,
                  value, height, false, altkey);
     }
 
diff --git a/src/avalanche/validation.h b/src/avalanche/validation.h
--- a/src/avalanche/validation.h
+++ b/src/avalanche/validation.h
@@ -23,7 +23,7 @@
     AMOUNT_MISMATCH,
     NON_STANDARD_DESTINATION,
     DESTINATION_NOT_SUPPORTED,
-    DESTINATION_MISMACTCH,
+    DESTINATION_MISMATCH,
 };
 
 class ProofValidationState : public ValidationState<ProofValidationResult> {};