diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -1006,6 +1006,12 @@
                                 serror, SCRIPT_ERR_INVALID_STACK_OPERATION);
                         }
 
+                        bool fSuccess = true;
+
+                        // Subset of script starting at the most recent
+                        // codeseparator
+                        CScript scriptCode(pbegincodehash, pend);
+
                         // A bug causes CHECKMULTISIG to consume one extra
                         // argument whose contents were not checked in any way.
                         //
@@ -1017,17 +1023,12 @@
                             return set_error(serror, SCRIPT_ERR_SIG_NULLDUMMY);
                         }
 
-                        // Subset of script starting at the most recent
-                        // codeseparator
-                        CScript scriptCode(pbegincodehash, pend);
-
                         // Remove signature for pre-fork scripts
                         for (int k = 0; k < nSigsCount; k++) {
                             valtype &vchSig = stacktop(-idxTopSig - k);
                             CleanupScriptCode(scriptCode, vchSig, flags);
                         }
 
-                        bool fSuccess = true;
                         size_t ikey = idxTopKey;
                         size_t isig = idxTopSig;
                         int nSigsRemaining = nSigsCount;