diff --git a/rtengine/iplab2rgb.cc b/rtengine/iplab2rgb.cc
index 7620068a4..ffa6ea8c0 100644
--- a/rtengine/iplab2rgb.cc
+++ b/rtengine/iplab2rgb.cc
@@ -351,6 +351,7 @@ Imagefloat* ImProcFunctions::lab2rgbOut(LabImage* lab, int cx, int cy, int cw, i
 
         image->ExecCMSTransform(hTransform, *lab, cx, cy);
         cmsDeleteTransform(hTransform);
+        cmsCloseProfile(iprof);
         image->normalizeFloatTo65535();
     } else {