diff --git a/README.md b/README.md
index 003781d..9ccd575 100644
--- a/README.md
+++ b/README.md
@@ -78,3 +78,4 @@ The following tools are used:
 - GCC ARM Embedded as the compiler
 - Nordic's nrfutil 0.5.2 for flashing the firmware by serial interface
 - J-Link for flashing the bootloader by SWD interface
+
diff --git a/firmware/KeyScanner.cpp b/firmware/KeyScanner.cpp
index 4c7bd67..c5da82e 100644
--- a/firmware/KeyScanner.cpp
+++ b/firmware/KeyScanner.cpp
@@ -227,7 +227,7 @@ uint8_t layer = getlayer(detectedlayerkeys);
      * key has been pressed
      */
 
-    std::copy(toggleBuffer.begin(), toggleBuffer.end(), activeKeys.begin());
+    std::copy(toggleBuffer.begin(), toggleBuffer.end(), back_inserter(activeKeys));
    /* for (auto activation : toggleBuffer) 
     {
         activeKeys.push_back(activation);
@@ -235,7 +235,7 @@ uint8_t layer = getlayer(detectedlayerkeys);
 
     if (emptyOneshot) 
     {
-        std::copy(oneshotBuffer.begin(), oneshotBuffer.end(), activeKeys.begin());
+        std::copy(oneshotBuffer.begin(), oneshotBuffer.end(), back_inserter(activeKeys));
        /* for (auto activation : oneshotBuffer) 
         {
             activeKeys.push_back(activation);
@@ -418,4 +418,4 @@ std::vector<uint16_t> KeyScanner::activeKeys {};
 std::vector<uint16_t> KeyScanner::macroBuffer {};
 std::vector<uint16_t> KeyScanner::toggleBuffer {};
 std::vector<uint16_t> KeyScanner::leaderBuffer {};
-std::vector<uint16_t> KeyScanner::oneshotBuffer {};
\ No newline at end of file
+std::vector<uint16_t> KeyScanner::oneshotBuffer {};