diff --git a/rtengine/histmatching.cc b/rtengine/histmatching.cc
index b83cc0562..f91086285 100644
--- a/rtengine/histmatching.cc
+++ b/rtengine/histmatching.cc
@@ -289,7 +289,10 @@ void RawImageSource::getAutoMatchedToneCurve(const ColorManagementParams &cp, st
             histMatchingCache = outCurve;
             *histMatchingParams = cp;
             return;
-        } else if (w * 25 < fw) {
+        } else if (w * 33 < fw || w * h < 19200) {
+             // Some cameras have extremely small thumbs, for example Canon PowerShot A3100 IS has 128x96 thumbs.
+             // For them we skip histogram matching.
+             // With 160x120 thumbs from RICOH GR DIGITAL 2 it works fine, so we use 19200 as limit.
             if (settings->verbose) {
                 std::cout << "histogram matching: the embedded thumbnail is too small: " << w << "x" << h << std::endl;
             }
diff --git a/rtgui/main-cli.cc b/rtgui/main-cli.cc
index ddd42eb6a..cbea1d477 100644
--- a/rtgui/main-cli.cc
+++ b/rtgui/main-cli.cc
@@ -28,15 +28,17 @@
 #include <giomm.h>
 #include <iostream>
 #include <tiffio.h>
-#include "rtwindow.h"
 #include <cstring>
 #include <cstdlib>
 #include <locale.h>
+#include "../rtengine/procparams.h"
+#include "../rtengine/profilestore.h"
 #include "options.h"
 #include "soundman.h"
 #include "rtimage.h"
 #include "version.h"
 #include "extprog.h"
+#include "pathutils.h"
 
 #ifndef WIN32
 #include <glibmm/fileutils.h>
@@ -44,6 +46,8 @@
 #include <glib/gstdio.h>
 #include <glibmm/threads.h>
 #else
+#include <windows.h>
+#include <shlobj.h>
 #include <glibmm/thread.h>
 #include "conio.h"
 #endif