diff --git a/sw/src/userspace/remotectl.cpp b/sw/src/userspace/remotectl.cpp
index 6ecac7c..450d6d2 100644
--- a/sw/src/userspace/remotectl.cpp
+++ b/sw/src/userspace/remotectl.cpp
@@ -1118,7 +1118,7 @@ private:
             min_divisor *= 2;
         }
         if (ch4) {
-            min_divisor += 2;
+            min_divisor *= 2;
         }
         return min_divisor;
     }
diff --git a/sw/src/userspace/version.hpp b/sw/src/userspace/version.hpp
index 6075dcc..3774084 100644
--- a/sw/src/userspace/version.hpp
+++ b/sw/src/userspace/version.hpp
@@ -1,2 +1,2 @@
 #define PUZZLEFW_SW_MAJOR 0
-#define PUZZLEFW_SW_MINOR 4
+#define PUZZLEFW_SW_MINOR 5