diff --git a/engines/stark/detection.cpp b/engines/stark/detection.cpp
index 2aeffd0f99d..a2738a3e06b 100644
--- a/engines/stark/detection.cpp
+++ b/engines/stark/detection.cpp
@@ -230,8 +230,8 @@ public:
 		char slot[3];
 		for (Common::StringArray::const_iterator filename = filenames.begin(); filename != filenames.end(); ++filename) {
 			// Extract the slot number from the filename
-			slot[0] = filename->c_str()[5];
-			slot[1] = filename->c_str()[6];
+			slot[0] = filename->c_str()[4];
+			slot[1] = filename->c_str()[5];
 			slot[2] = '\0';
 
 			// Read the description from the save