diff --git a/rtengine/improcfun.cc b/rtengine/improcfun.cc
index 8180c353f..f21748a3b 100644
--- a/rtengine/improcfun.cc
+++ b/rtengine/improcfun.cc
@@ -5824,7 +5824,7 @@ SSEFUNCTION void ImProcFunctions::chromiLuminanceCurve (EditBuffer *editBuffer,
     };
 
 #ifdef _DEBUG
-    #pragma omp parallel default(shared) firstprivate(highlight, ccut, clut, chromaticity, bwToning, rstprotection, avoidColorShift, LCredsk, protectRed, protectRedH, gamutLch, lold, lnew, MunsDebugInfo, pW) if (multiThread)
+    #pragma omp parallel default(shared) firstprivate(lold, lnew, MunsDebugInfo, pW) if (multiThread)
 #else
     #pragma omp parallel if (multiThread)
 #endif