diff --git a/de4dot.code/deobfuscators/Confuser/VersionDetector.cs b/de4dot.code/deobfuscators/Confuser/VersionDetector.cs
index 1ada626c..146bba7e 100644
--- a/de4dot.code/deobfuscators/Confuser/VersionDetector.cs
+++ b/de4dot.code/deobfuscators/Confuser/VersionDetector.cs
@@ -71,6 +71,7 @@ namespace de4dot.code.deobfuscators.Confuser {
 					throw new ApplicationException();
 				else
 					revToVersion[rev] = currentVersion;
+				prevRev = rev;
 			}
 		}