diff --git a/libs/libkis/Document.cpp b/libs/libkis/Document.cpp
--- a/libs/libkis/Document.cpp
+++ b/libs/libkis/Document.cpp
@@ -172,12 +172,10 @@
     if (!colorSpace) return false;
     d->document->image()->lock();
 
+    d->document->image()->convertImageColorSpace(colorSpace,
+                                                 KoColorConversionTransformation::IntentPerceptual,
+                                                 KoColorConversionTransformation::HighQuality | KoColorConversionTransformation::NoOptimization);
 
-    KisColorSpaceConvertVisitor visitor(d->document->image(),
-                                        d->document->image()->colorSpace(),
-                                        colorSpace,
-                                        KoColorConversionTransformation::IntentPerceptual,
-                                        KoColorConversionTransformation::HighQuality | KoColorConversionTransformation::NoOptimization);
     d->document->image()->unlock();
     d->document->image()->setModified();
     d->document->image()->initialRefreshGraph();
@@ -471,6 +469,3 @@
 {
     return d->document;
 }
-
-
-
diff --git a/plugins/extensions/pykrita/sip/krita/Document.sip b/plugins/extensions/pykrita/sip/krita/Document.sip
--- a/plugins/extensions/pykrita/sip/krita/Document.sip
+++ b/plugins/extensions/pykrita/sip/krita/Document.sip
@@ -15,7 +15,7 @@
     QString colorModel() const;
     QString colorProfile() const;
     bool setColorProfile(const QString &colorProfile);
-    void setColorSpace(const QString &value, const QString &colorDepth, const QString &colorProfile);
+    bool setColorSpace(const QString &value, const QString &colorDepth, const QString &colorProfile);
     QString documentInfo() const;
     void setDocumentInfo(const QString &document);
     QString fileName() const;