diff --git a/toolkit/components/url-classifier/VariableLengthPrefixSet.cpp b/toolkit/components/url-classifier/VariableLengthPrefixSet.cpp
index 4596e6e028..c1256f82e6 100644
--- a/toolkit/components/url-classifier/VariableLengthPrefixSet.cpp
+++ b/toolkit/components/url-classifier/VariableLengthPrefixSet.cpp
@@ -8,7 +8,6 @@
 #include "nsPrintfCString.h"
 #include "nsThreadUtils.h"
 #include "mozilla/EndianUtils.h"
-#include "mozilla/Telemetry.h"
 #include "mozilla/Unused.h"
 #include <algorithm>
 
diff --git a/toolkit/components/url-classifier/nsUrlClassifierPrefixSet.cpp b/toolkit/components/url-classifier/nsUrlClassifierPrefixSet.cpp
index 4001be1a8f..3cdec195bd 100644
--- a/toolkit/components/url-classifier/nsUrlClassifierPrefixSet.cpp
+++ b/toolkit/components/url-classifier/nsUrlClassifierPrefixSet.cpp
@@ -19,7 +19,6 @@
 #include "nsIBufferedStreams.h"
 #include "nsIFileStreams.h"
 #include "mozilla/MemoryReporting.h"
-#include "mozilla/Telemetry.h"
 #include "mozilla/FileUtils.h"
 #include "mozilla/Logging.h"
 #include "mozilla/Unused.h"