diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index 2d9f93148..c441bd1e2 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -237,6 +237,7 @@ void CHyprOpenGLImpl::initShaders() {
     m_RenderData.pCurrentMonData->m_shBORDER1.topLeft = glGetUniformLocation(prog, "topLeft");
     m_RenderData.pCurrentMonData->m_shBORDER1.bottomRight = glGetUniformLocation(prog, "bottomRight");
     m_RenderData.pCurrentMonData->m_shBORDER1.fullSize = glGetUniformLocation(prog, "fullSize");
+    m_RenderData.pCurrentMonData->m_shBORDER1.fullSizeUntransformed = glGetUniformLocation(prog, "fullSizeUntransformed");
     m_RenderData.pCurrentMonData->m_shBORDER1.radius = glGetUniformLocation(prog, "radius");
     m_RenderData.pCurrentMonData->m_shBORDER1.primitiveMultisample = glGetUniformLocation(prog, "primitiveMultisample");
     m_RenderData.pCurrentMonData->m_shBORDER1.gradient = glGetUniformLocation(prog, "gradient");
@@ -863,8 +864,8 @@ void CHyprOpenGLImpl::renderBorder(wlr_box* box, const CGradientValueData& grad,
     const auto FULLSIZE = Vector2D(transformedBox.width, transformedBox.height);
 
     glUniform2f(m_RenderData.pCurrentMonData->m_shBORDER1.topLeft, (float)TOPLEFT.x, (float)TOPLEFT.y);
-    //glUniform2f(m_RenderData.pCurrentMonData->m_shBORDER1.bottomRight, (float)BOTTOMRIGHT.x, (float)BOTTOMRIGHT.y);
     glUniform2f(m_RenderData.pCurrentMonData->m_shBORDER1.fullSize, (float)FULLSIZE.x, (float)FULLSIZE.y);
+    glUniform2f(m_RenderData.pCurrentMonData->m_shBORDER1.fullSizeUntransformed, (float)box->width, (float)box->height);
     glUniform1f(m_RenderData.pCurrentMonData->m_shBORDER1.radius, round);
     glUniform1f(m_RenderData.pCurrentMonData->m_shBORDER1.thick, scaledBorderSize);
     glUniform1i(m_RenderData.pCurrentMonData->m_shBORDER1.primitiveMultisample, *PMULTISAMPLE);
diff --git a/src/render/Shader.hpp b/src/render/Shader.hpp
index db98b1f2c..c9c637255 100644
--- a/src/render/Shader.hpp
+++ b/src/render/Shader.hpp
@@ -19,6 +19,7 @@ public:
     GLint topLeft;
     GLint bottomRight;
     GLint fullSize;
+    GLint fullSizeUntransformed;
     GLint radius;
     GLint primitiveMultisample;
 
diff --git a/src/render/shaders/Border.hpp b/src/render/shaders/Border.hpp
index c2be9880c..274ae362a 100644
--- a/src/render/shaders/Border.hpp
+++ b/src/render/shaders/Border.hpp
@@ -10,6 +10,7 @@ varying vec2 v_texcoord;
 
 uniform vec2 topLeft;
 uniform vec2 fullSize;
+uniform vec2 fullSizeUntransformed;
 uniform float radius;
 uniform float thick;
 uniform int primitiveMultisample;
@@ -51,7 +52,7 @@ vec4 getColorForCoord(vec2 normalizedCoord) {
 void main() {
 
     highp vec2 pixCoord = vec2(gl_FragCoord);
-    vec2 originalPixCoord = fullSize * v_texcoord;
+    vec2 originalPixCoord = fullSizeUntransformed * v_texcoord;
 
     vec4 pixColor = getColorForCoord(v_texcoord);
     pixColor[3] *= alpha;
@@ -96,9 +97,9 @@ void main() {
     if (!done) {
         // distance to all straight bb borders
         float distanceT = originalPixCoord[1];
-        float distanceB = fullSize[1] - originalPixCoord[1];
+        float distanceB = fullSizeUntransformed[1] - originalPixCoord[1];
         float distanceL = originalPixCoord[0];
-        float distanceR = fullSize[0] - originalPixCoord[0];
+        float distanceR = fullSizeUntransformed[0] - originalPixCoord[0];
 
         // get the smallest
         float smallest = min(min(distanceT, distanceB), min(distanceL, distanceR));