diff --git a/rtengine/improccoordinator.cc b/rtengine/improccoordinator.cc
index 63ca9c5d0..6ff60506b 100644
--- a/rtengine/improccoordinator.cc
+++ b/rtengine/improccoordinator.cc
@@ -32,7 +32,7 @@ extern const Settings* settings;
 ImProcCoordinator::ImProcCoordinator ()
     : orig_prev(NULL), oprevi(NULL), oprevl(NULL), nprevl(NULL), previmg(NULL), workimg(NULL),
       ncie(NULL), imgsrc(NULL), shmap(NULL), lastAwbEqual(0.), ipf(&params, true), monitorIntent(RI_PERCEPTUAL), scale(10),
-      highDetailPreprocessComputed(false), highDetailRawComputed(false), allocated(false), isColorProfileDirty(true),
+      highDetailPreprocessComputed(false), highDetailRawComputed(false), allocated(false),
       bwAutoR(-9000.f), bwAutoG(-9000.f), bwAutoB(-9000.f), CAMMean(0.),
 
       hltonecurve(65536),
@@ -781,10 +781,9 @@ void ImProcCoordinator::updatePreviewImage (int todo, Crop* cropCall)
         }
     }
 
-    // Update the output color transform if necessary
-    if (isColorProfileDirty || (todo & M_MONITOR)) {
+    // Update the monitor color transform if necessary
+    if (todo & M_MONITOR) {
         ipf.updateColorProfiles(params.icm, monitorProfile, monitorIntent);
-        isColorProfileDirty = false;
     }
 
     // process crop, if needed
@@ -1132,19 +1131,13 @@ void ImProcCoordinator::getAutoCrop (double ratio, int &x, int &y, int &w, int &
     y = (fullh - h) / 2;
 }
 
-void ImProcCoordinator::setMonitorProfile (Glib::ustring profile, RenderingIntent intent)
+void ImProcCoordinator::setMonitorProfile (const Glib::ustring& profile, RenderingIntent intent)
 {
-    if (profile != monitorProfile) {
-        monitorProfile = profile;
-        isColorProfileDirty = true;
-    }
-    if (intent != monitorIntent) {
-        monitorIntent = intent;
-        isColorProfileDirty = true;
-    }
+    monitorProfile = profile;
+    monitorIntent = intent;
 }
 
-void ImProcCoordinator::getMonitorProfile (Glib::ustring &profile, RenderingIntent &intent)
+void ImProcCoordinator::getMonitorProfile (Glib::ustring& profile, RenderingIntent& intent) const
 {
     profile = monitorProfile;
     intent = monitorIntent;
diff --git a/rtengine/improccoordinator.h b/rtengine/improccoordinator.h
index 78d3dca7f..4d442482e 100644
--- a/rtengine/improccoordinator.h
+++ b/rtengine/improccoordinator.h
@@ -81,8 +81,6 @@ protected:
     bool highDetailRawComputed;
     bool allocated;
 
-    bool isColorProfileDirty;
-
     void freeAll ();
 
     // Precomputed values used by DetailedCrop ----------------------------------------------
@@ -255,8 +253,8 @@ public:
     void getSpotWB   (int x, int y, int rectSize, double& temp, double& green);
     void getAutoCrop (double ratio, int &x, int &y, int &w, int &h);
 
-    void setMonitorProfile (Glib::ustring profile, RenderingIntent intent);
-    void getMonitorProfile (Glib::ustring &profile, RenderingIntent &intent);
+    void setMonitorProfile (const Glib::ustring& profile, RenderingIntent intent);
+    void getMonitorProfile (Glib::ustring& profile, RenderingIntent& intent) const;
 
     bool updateTryLock ()
     {
diff --git a/rtengine/rtengine.h b/rtengine/rtengine.h
index d20b89c33..42e06406e 100644
--- a/rtengine/rtengine.h
+++ b/rtengine/rtengine.h
@@ -416,8 +416,8 @@ public:
     virtual void        setRetinexListener      (RetinexListener* l) = 0;
     virtual void        setWaveletListener      (WaveletListener* l) = 0;
 
-    virtual void        setMonitorProfile       (Glib::ustring monitorProfile, RenderingIntent intent) = 0;
-    virtual void        getMonitorProfile       (Glib::ustring &monitorProfile, RenderingIntent &intent) = 0;
+    virtual void        setMonitorProfile       (const Glib::ustring& monitorProfile, RenderingIntent intent) = 0;
+    virtual void        getMonitorProfile       (Glib::ustring& monitorProfile, RenderingIntent& intent) const = 0;
 
     virtual ~StagedImageProcessor () {}