diff --git a/services/surfaceflinger/RenderEngine/ProgramCache.cpp b/services/surfaceflinger/RenderEngine/ProgramCache.cpp
index 89ee64b..5f09ac0 100644
--- a/services/surfaceflinger/RenderEngine/ProgramCache.cpp
+++ b/services/surfaceflinger/RenderEngine/ProgramCache.cpp
@@ -251,7 +251,7 @@
                     const float maxMasteringLumi = 1000.0;
                     const float maxContentLumi = 1000.0;
                     const float maxInLumi = min(maxMasteringLumi, maxContentLumi);
-                    const float maxOutLumi = displayMaxLuminance;
+                    float maxOutLumi = displayMaxLuminance;
 
                     // Calculate Y value in XYZ color space.
                     float colorY = CalculateY(color);
@@ -269,18 +269,18 @@
                         // three control points
                         const float x0 = 10.0;
                         const float y0 = 17.0;
-                        const float x1 = maxOutLumi * 0.75;
-                        const float y1 = x1;
-                        const float x2 = x1 + (maxInLumi - x1) / 2.0;
-                        const float y2 = y1 + (maxOutLumi - y1) * 0.75;
+                        float x1 = maxOutLumi * 0.75;
+                        float y1 = x1;
+                        float x2 = x1 + (maxInLumi - x1) / 2.0;
+                        float y2 = y1 + (maxOutLumi - y1) * 0.75;
 
                         // horizontal distances between the last three control points
-                        const float h12 = x2 - x1;
-                        const float h23 = maxInLumi - x2;
+                        float h12 = x2 - x1;
+                        float h23 = maxInLumi - x2;
                         // tangents at the last three control points
-                        const float m1 = (y2 - y1) / h12;
-                        const float m3 = (maxOutLumi - y2) / h23;
-                        const float m2 = (m1 + m3) / 2.0;
+                        float m1 = (y2 - y1) / h12;
+                        float m3 = (maxOutLumi - y2) / h23;
+                        float m2 = (m1 + m3) / 2.0;
 
                         if (nits < x0) {
                             // scale [0.0, x0] to [0.0, y0] linearly
@@ -288,7 +288,7 @@
                             nits *= slope;
                         } else if (nits < x1) {
                             // scale [x0, x1] to [y0, y1] linearly
-                            const float slope = (y1 - y0) / (x1 - x0);
+                            float slope = (y1 - y0) / (x1 - x0);
                             nits = y0 + (nits - x0) * slope;
                         } else if (nits < x2) {
                             // scale [x1, x2] to [y1, y2] using Hermite interp
@@ -448,7 +448,7 @@
     if (needs.hasTransformMatrix() || (needs.getInputTF() != needs.getOutputTF())) {
         // Currently, only the OOTF of BT2020 PQ needs display maximum luminance.
         if (needs.getInputTF() == Key::INPUT_TF_ST2084) {
-            fs << "uniform float displayMaxLuminance";
+            fs << "uniform float displayMaxLuminance;";
         }
 
         if (needs.hasInputTransformMatrix()) {