diff --git a/src/command.cpp b/src/command.cpp
index 391c31e3002ab901a4564df12e6214ccbe85fff6..ba054af15bfbc9a2d807d2d085cb31d51a1ed7f4 100644
--- a/src/command.cpp
+++ b/src/command.cpp
@@ -82,6 +82,7 @@ Command Command::fromString(const QString& source)
         case Action::fillHistogram:
             return parseFillHistogram(rootobj);
         case Action::sendHistogramUpdate:
+            return Command(action, Arguments(), token);
         case Action::moveTargetCloser:
         case Action::moveTargetFarther:
         case Action::openVacuumValve: