diff --git a/vtm/resources/assets/shaders/line_aa.glsl b/vtm/resources/assets/shaders/line_aa.glsl
index 3b0ac558..4087906c 100644
--- a/vtm/resources/assets/shaders/line_aa.glsl
+++ b/vtm/resources/assets/shaders/line_aa.glsl
@@ -1,5 +1,6 @@
 #ifdef GLES
-precision mediump float;
+// highp is necessary to not loose texture coordinate bits
+precision highp float;
 #endif
 uniform mat4 u_mvp;
 // uniform mat4 u_vp;
diff --git a/vtm/resources/assets/shaders/line_aa_proj.glsl b/vtm/resources/assets/shaders/line_aa_proj.glsl
index e2dfb095..21f2fca5 100644
--- a/vtm/resources/assets/shaders/line_aa_proj.glsl
+++ b/vtm/resources/assets/shaders/line_aa_proj.glsl
@@ -1,5 +1,6 @@
-#ifndef DESKTOP_QUIRKS
-precision mediump float;
+#ifdef GLES
+// highp is necessary to not loose texture coordinate bits
+precision highp float;
 #endif
 uniform mat4 u_mvp;
 // uniform mat4 u_vp;