diff --git a/src/backends/drm/drm_egl_layer_surface.cpp b/src/backends/drm/drm_egl_layer_surface.cpp
index 13287fc838..cebcdd1f77 100644
--- a/src/backends/drm/drm_egl_layer_surface.cpp
+++ b/src/backends/drm/drm_egl_layer_surface.cpp
@@ -160,7 +160,7 @@ bool EglGbmLayerSurface::endRendering(const QRegion &damagedRegion)
             binder.shader()->setUniform(GLShader::MatrixUniform::ColorimetryTransformation, ctm);
             binder.shader()->setUniform(GLShader::IntUniform::SourceNamedTransferFunction, int(m_surface->intermediaryColorDescription.transferFunction()));
             binder.shader()->setUniform(GLShader::IntUniform::DestinationNamedTransferFunction, int(m_surface->targetColorDescription.transferFunction()));
-            binder.shader()->setUniform(GLShader::IntUniform::SdrBrightness, m_surface->intermediaryColorDescription.sdrBrightness());
+            binder.shader()->setUniform(GLShader::FloatUniform::SdrBrightness, m_surface->intermediaryColorDescription.sdrBrightness());
             binder.shader()->setUniform(GLShader::FloatUniform::MaxHdrBrightness, m_surface->intermediaryColorDescription.maxHdrHighlightBrightness());
         }
         QMatrix4x4 mat = fbo->colorAttachment()->contentTransformMatrix();
diff --git a/src/libkwineffects/glshader.cpp b/src/libkwineffects/glshader.cpp
index 24985f2696..46e26ceedb 100644
--- a/src/libkwineffects/glshader.cpp
+++ b/src/libkwineffects/glshader.cpp
@@ -219,6 +219,7 @@ void GLShader::resolveLocations()
 
     m_floatLocation[Saturation] = uniformLocation("saturation");
     m_floatLocation[MaxHdrBrightness] = uniformLocation("maxHdrBrightness");
+    m_floatLocation[SdrBrightness] = uniformLocation("sdrBrightness");
 
     m_colorLocation[Color] = uniformLocation("geometryColor");
 
@@ -226,7 +227,6 @@ void GLShader::resolveLocations()
     m_intLocation[TextureHeight] = uniformLocation("textureHeight");
     m_intLocation[SourceNamedTransferFunction] = uniformLocation("sourceNamedTransferFunction");
     m_intLocation[DestinationNamedTransferFunction] = uniformLocation("destinationNamedTransferFunction");
-    m_intLocation[SdrBrightness] = uniformLocation("sdrBrightness");
 
     m_locationsResolved = true;
 }
@@ -442,7 +442,7 @@ bool GLShader::setColorspaceUniforms(const ColorDescription &src, const ColorDes
     return setUniform(GLShader::MatrixUniform::ColorimetryTransformation, src.colorimetry().toOther(dst.colorimetry()))
         && setUniform(GLShader::IntUniform::SourceNamedTransferFunction, int(src.transferFunction()))
         && setUniform(GLShader::IntUniform::DestinationNamedTransferFunction, int(dst.transferFunction()))
-        && setUniform(IntUniform::SdrBrightness, dst.sdrBrightness())
+        && setUniform(FloatUniform::SdrBrightness, dst.sdrBrightness())
         && setUniform(FloatUniform::MaxHdrBrightness, dst.maxHdrHighlightBrightness());
 }
 
@@ -456,8 +456,7 @@ bool GLShader::setColorspaceUniformsToSRGB(const ColorDescription &src)
     return setUniform(GLShader::MatrixUniform::ColorimetryTransformation, src.colorimetry().toOther(ColorDescription::sRGB.colorimetry()))
         && setUniform(GLShader::IntUniform::SourceNamedTransferFunction, int(src.transferFunction()))
         && setUniform(GLShader::IntUniform::DestinationNamedTransferFunction, int(NamedTransferFunction::sRGB))
-        && setUniform(IntUniform::SdrBrightness, src.sdrBrightness())
+        && setUniform(FloatUniform::SdrBrightness, src.sdrBrightness())
         && setUniform(FloatUniform::MaxHdrBrightness, src.sdrBrightness());
 }
-
 }
diff --git a/src/libkwineffects/glshader.h b/src/libkwineffects/glshader.h
index 1b40ff0620..4f36fd7b4e 100644
--- a/src/libkwineffects/glshader.h
+++ b/src/libkwineffects/glshader.h
@@ -99,6 +99,7 @@ public:
     enum FloatUniform {
         Saturation,
         MaxHdrBrightness,
+        SdrBrightness,
         FloatUniformCount
     };
 
@@ -108,7 +109,6 @@ public:
         TextureHeight,
         SourceNamedTransferFunction,
         DestinationNamedTransferFunction,
-        SdrBrightness,
         IntUniformCount
     };
 
diff --git a/src/libkwineffects/glshadermanager.cpp b/src/libkwineffects/glshadermanager.cpp
index b6f5552886..9963e2fdee 100644
--- a/src/libkwineffects/glshadermanager.cpp
+++ b/src/libkwineffects/glshadermanager.cpp
@@ -157,7 +157,7 @@ QByteArray ShaderManager::generateFragmentSource(ShaderTraits traits) const
         stream << "uniform mat3 colorimetryTransform;\n";
         stream << "uniform int sourceNamedTransferFunction;\n";
         stream << "uniform int destinationNamedTransferFunction;\n";
-        stream << "uniform int sdrBrightness;// in nits\n";
+        stream << "uniform float sdrBrightness;// in nits\n";
         stream << "uniform float maxHdrBrightness; // in nits\n";
         stream << "\n";
         stream << "vec3 nitsToPq(vec3 nits) {\n";