diff --git a/rtengine/iplocallab.cc b/rtengine/iplocallab.cc
index 5b7160b83..7bca595ea 100644
--- a/rtengine/iplocallab.cc
+++ b/rtengine/iplocallab.cc
@@ -1647,13 +1647,6 @@ static void calcLocalParams(int sp, int oW, int oH, const LocallabParams& locall
     lp.hlcomp = locallab.spots.at(sp).hlcompr;
     lp.hlcompthr = locallab.spots.at(sp).hlcomprthresh;
     lp.expcomp = LIM(locallab.spots.at(sp).expcomp, -2.0, 4.0); //to prevent crash with Old pp3 with integer
-    //increase sensitivity for low values
-    float proexp = lp.expcomp;
-    if (std::fabs(proexp) < 0.6f) {
-        float interm = std::fabs(proexp) / 0.6f;
-        interm = pow(interm, 3.f);
-        lp.expcomp = proexp * interm;
-    }
     lp.expchroma = locallab.spots.at(sp).expchroma / 100.;
     lp.sensex = local_sensiex;
     lp.war = local_warm;
diff --git a/rtengine/opthelper.h b/rtengine/opthelper.h
index f431c0ec9..8de3b781b 100644
--- a/rtengine/opthelper.h
+++ b/rtengine/opthelper.h
@@ -20,7 +20,7 @@
 ////////////////////////////////////////////////////////////////
 #pragma once
 
-#define pow_F(a,b) (xexpf(b*xlogf(a)))
+#define pow_F(a,b) (xexpf((b)*xlogf(a)))
 
 #ifdef __SSE2__
     #include "sleefsseavx.h"
diff --git a/rtengine/sleef.h b/rtengine/sleef.h
index 8611e2fc7..e630d882d 100644
--- a/rtengine/sleef.h
+++ b/rtengine/sleef.h
@@ -26,7 +26,6 @@
 #define L2U .69314718055966295651160180568695068359375
 #define L2L .28235290563031577122588448175013436025525412068e-12
 #define R_LN2 1.442695040888963407359924681001892137426645954152985934135449406931
-#define pow_F(a,b) (xexpf(b*xlogf(a)))
 
 __inline int64_t doubleToRawLongBits(double d) {
     union {