diff --git a/RELEASE.txt b/RELEASE.txt
index 84b3f2e9e..f7da1da3a 100755
--- a/RELEASE.txt
+++ b/RELEASE.txt
@@ -40,6 +40,7 @@ This document describes the differences between v7.0.0 and v6.x.x
 - when in discard partial frames or empty mode, the frame number doesnt increase by 1, it increases to that number (so its faster)
 - file write disabled by default
 - start non blocking acquisition at modular level
+- missingpackets signed (negative => extra packets)
 
 
 2. Resolved Issues
diff --git a/python/slsdet/detector.py b/python/slsdet/detector.py
index c4618760a..1d2ec6218 100755
--- a/python/slsdet/detector.py
+++ b/python/slsdet/detector.py
@@ -1911,7 +1911,7 @@ class Detector(CppDetectorApi):
     @property
     @element
     def rx_missingpackets(self):
-        """Gets the number of missing packets for each port in receiver."""
+        """Gets the number of missing packets for each port in receiver. Negative number denotes extra packets. """
         return self.getNumMissingPackets()
 
     """
diff --git a/python/src/detector.cpp b/python/src/detector.cpp
index f7a48f9fd..f796c3cbe 100644
--- a/python/src/detector.cpp
+++ b/python/src/detector.cpp
@@ -490,11 +490,10 @@ void init_det(py::module &m) {
              (Result<int64_t>(Detector::*)(sls::Positions) const) &
                  Detector::getFramesCaught,
              py::arg() = Positions{})
-        .def(
-            "getNumMissingPackets",
-            (Result<std::vector<uint64_t>>(Detector::*)(sls::Positions) const) &
-                Detector::getNumMissingPackets,
-            py::arg() = Positions{})
+        .def("getNumMissingPackets",
+             (Result<std::vector<int64_t>>(Detector::*)(sls::Positions) const) &
+                 Detector::getNumMissingPackets,
+             py::arg() = Positions{})
         .def("getNextFrameNumber",
              (Result<uint64_t>(Detector::*)(sls::Positions) const) &
                  Detector::getNextFrameNumber,
diff --git a/slsDetectorSoftware/include/sls/Detector.h b/slsDetectorSoftware/include/sls/Detector.h
index 4123d0284..ba10ac797 100644
--- a/slsDetectorSoftware/include/sls/Detector.h
+++ b/slsDetectorSoftware/include/sls/Detector.h
@@ -588,11 +588,9 @@ class Detector {
 
     Result<int64_t> getFramesCaught(Positions pos = {}) const;
 
-    /** Gets the number of missing packets for each port in receiver.
-     * Troubleshoot: If they are large numbers, convert it to signed to get
-     * number of access packets received */
-    Result<std::vector<uint64_t>>
-    getNumMissingPackets(Positions pos = {}) const;
+    /** Gets the number of missing packets for each port in receiver. Negative
+     * number denotes extra packets. */
+    Result<std::vector<int64_t>> getNumMissingPackets(Positions pos = {}) const;
 
     /** [Eiger][Jungfrau][Moench][CTB] */
     Result<uint64_t> getNextFrameNumber(Positions pos = {}) const;
diff --git a/slsDetectorSoftware/src/CmdProxy.h b/slsDetectorSoftware/src/CmdProxy.h
index b9c813f47..b0c8ee303 100644
--- a/slsDetectorSoftware/src/CmdProxy.h
+++ b/slsDetectorSoftware/src/CmdProxy.h
@@ -1536,7 +1536,8 @@ class CmdProxy {
                 "\n\tNumber of frames caught by receiver.");
 
     GET_COMMAND(rx_missingpackets, getNumMissingPackets,
-                "\n\tNumber of missing packets for each port in receiver.");
+                "\n\tNumber of missing packets for each port in receiver. "
+                "Negative number denotes extra packets.");
 
     INTEGER_COMMAND_VEC_ID(
         nextframenumber, getNextFrameNumber, setNextFrameNumber,
diff --git a/slsDetectorSoftware/src/Detector.cpp b/slsDetectorSoftware/src/Detector.cpp
index f31349ad4..e8680ef2f 100644
--- a/slsDetectorSoftware/src/Detector.cpp
+++ b/slsDetectorSoftware/src/Detector.cpp
@@ -797,7 +797,7 @@ Result<int64_t> Detector::getFramesCaught(Positions pos) const {
     return pimpl->Parallel(&Module::getFramesCaughtByReceiver, pos);
 }
 
-Result<std::vector<uint64_t>>
+Result<std::vector<int64_t>>
 Detector::getNumMissingPackets(Positions pos) const {
     return pimpl->Parallel(&Module::getNumMissingPackets, pos);
 }
diff --git a/slsDetectorSoftware/src/Module.cpp b/slsDetectorSoftware/src/Module.cpp
index e36f69c1c..599a754b8 100644
--- a/slsDetectorSoftware/src/Module.cpp
+++ b/slsDetectorSoftware/src/Module.cpp
@@ -870,7 +870,7 @@ int64_t Module::getFramesCaughtByReceiver() const {
     return sendToReceiver<int64_t>(F_GET_RECEIVER_FRAMES_CAUGHT);
 }
 
-std::vector<uint64_t> Module::getNumMissingPackets() const {
+std::vector<int64_t> Module::getNumMissingPackets() const {
     // TODO!(Erik) Refactor
     LOG(logDEBUG1) << "Getting num missing packets";
     if (shm()->useReceiverFlag) {
@@ -882,7 +882,7 @@ std::vector<uint64_t> Module::getNumMissingPackets() const {
                 " returned error: " + client.readErrorMessage());
         } else {
             auto nports = client.Receive<int>();
-            std::vector<uint64_t> retval(nports);
+            std::vector<int64_t> retval(nports);
             client.Receive(retval);
             LOG(logDEBUG1) << "Missing packets of Receiver" << moduleIndex
                            << ": " << sls::ToString(retval);
diff --git a/slsDetectorSoftware/src/Module.h b/slsDetectorSoftware/src/Module.h
index 22ea7b030..217b35075 100644
--- a/slsDetectorSoftware/src/Module.h
+++ b/slsDetectorSoftware/src/Module.h
@@ -200,7 +200,7 @@ class Module : public virtual slsDetectorDefs {
     runStatus getReceiverStatus() const;
     double getReceiverProgress() const;
     int64_t getFramesCaughtByReceiver() const;
-    std::vector<uint64_t> getNumMissingPackets() const;
+    std::vector<int64_t> getNumMissingPackets() const;
     uint64_t getNextFrameNumber() const;
     void setNextFrameNumber(uint64_t value);
     void sendSoftwareTrigger(const bool block);