diff --git a/rtengine/procparams.cc b/rtengine/procparams.cc
index 51e0bebf9..e200ba610 100644
--- a/rtengine/procparams.cc
+++ b/rtengine/procparams.cc
@@ -8470,20 +8470,25 @@ PartialProfile::PartialProfile(bool createInstance, bool paramsEditedValue)
         pparams = nullptr;
         pedited = nullptr;
     }
+    ownsPparams = ownsPedited = true;
 }
 
 PartialProfile::PartialProfile(ProcParams* pp, ParamsEdited* pe, bool fullCopy)
 {
     if (fullCopy && pp) {
         pparams = new ProcParams(*pp);
+        ownsPparams = true;
     } else {
         pparams = pp;
+        ownsPparams = false;
     }
 
     if (fullCopy && pe) {
         pedited = new ParamsEdited(*pe);
+        ownsPedited = true;
     } else {
         pedited = pe;
+        ownsPedited = false;
     }
 }
 
@@ -8500,12 +8505,15 @@ PartialProfile::PartialProfile(const ProcParams* pp, const ParamsEdited* pe)
     } else {
         pedited = nullptr;
     }
+    ownsPparams = ownsPedited = true;
 }
 
 PartialProfile::~PartialProfile()
 {
-    delete pparams;
-    delete pedited;
+    if(ownsPparams)
+        delete pparams;
+    if(ownsPedited)
+        delete pedited;
 }
 
 int PartialProfile::load (const Glib::ustring &fName)
diff --git a/rtengine/procparams.h b/rtengine/procparams.h
index 5b2b2ebc4..817a4e011 100644
--- a/rtengine/procparams.h
+++ b/rtengine/procparams.h
@@ -1441,6 +1441,9 @@ public:
     int  load           (const Glib::ustring &fName);
     void set            (bool v);
     const void applyTo  (ProcParams *destParams) const ;
+private:
+    bool ownsPparams;
+    bool ownsPedited;
 };
 
 /**