diff --git a/src/multio/CMakeLists.txt b/src/multio/CMakeLists.txt
index 591c0dbdb..7efc4a2e9 100644
--- a/src/multio/CMakeLists.txt
+++ b/src/multio/CMakeLists.txt
@@ -38,7 +38,6 @@ list( APPEND multio_util_srcs
     util/RingBuffer.h
     util/Tracer.h
     util/Tracer.cc
-    util/TraceEventIds.h
 )
 
 list( APPEND multio_config_srcs
diff --git a/src/multio/api/multio_c.cc b/src/multio/api/multio_c.cc
index ccca212a9..9161508c9 100644
--- a/src/multio/api/multio_c.cc
+++ b/src/multio/api/multio_c.cc
@@ -88,10 +88,6 @@ struct multio_metadata_t : public multio::message::Metadata {
 
 
 namespace {
-
-static multio::util::Tracer tracer(8, 32768, "./multio_api_events.bin");
-static std::atomic_uint32_t traceEventCounter = 1;
-
 // Template magic to provide a consistent error-handling approach
 
 int innerWrapFn(std::function<void()> f) {
@@ -246,7 +242,6 @@ int multio_initialise() {
         if (!initialised) {
             const char* argv[2] = {"multio-api", 0};
             eckit::Main::initialise(1, const_cast<char**>(argv));
-            tracer.startWriterThread();
             initialised = true;
         }
     });
diff --git a/src/multio/util/Tracer.cc b/src/multio/util/Tracer.cc
index 691221d8e..5f1ccd13e 100644
--- a/src/multio/util/Tracer.cc
+++ b/src/multio/util/Tracer.cc
@@ -2,7 +2,7 @@
 
 #include <chrono>
 #include <sstream>
-
+#include <cstring>
 #include <fcntl.h>
 #include <unistd.h>