diff --git a/plugins/LayerView/layers.shader b/plugins/LayerView/layers.shader
index cb92b0caef..4173721e17 100755
--- a/plugins/LayerView/layers.shader
+++ b/plugins/LayerView/layers.shader
@@ -1,5 +1,6 @@
 [shaders]
 vertex =
+    #version 120
     uniform highp mat4 u_modelViewProjectionMatrix;
     uniform lowp float u_active_extruder;
     uniform lowp float u_shade_factor;
@@ -28,6 +29,7 @@ vertex =
     }
 
 fragment =
+    #version 120
     varying lowp vec4 v_color;
     varying float v_line_type;
 
diff --git a/plugins/LayerView/layerview_composite.shader b/plugins/LayerView/layerview_composite.shader
index 918f02aea1..3975c64bd4 100644
--- a/plugins/LayerView/layerview_composite.shader
+++ b/plugins/LayerView/layerview_composite.shader
@@ -1,5 +1,6 @@
 [shaders]
 vertex =
+    #version 120
     uniform highp mat4 u_modelViewProjectionMatrix;
     attribute highp vec4 a_vertex;
     attribute highp vec2 a_uvs;
@@ -13,6 +14,7 @@ vertex =
     }
 
 fragment =
+    #version 120
     uniform sampler2D u_layer0;
     uniform sampler2D u_layer1;
     uniform sampler2D u_layer2;
diff --git a/resources/shaders/grid.shader b/resources/shaders/grid.shader
index c05b9ba15c..0b090adc8e 100644
--- a/resources/shaders/grid.shader
+++ b/resources/shaders/grid.shader
@@ -1,5 +1,6 @@
 [shaders]
 vertex =
+    #version 120
     uniform highp mat4 u_modelViewProjectionMatrix;
 
     attribute highp vec4 a_vertex;
@@ -14,6 +15,7 @@ vertex =
     }
 
 fragment =
+    #version 120
     uniform lowp vec4 u_gridColor0;
     uniform lowp vec4 u_gridColor1;
 
diff --git a/resources/shaders/overhang.shader b/resources/shaders/overhang.shader
index 4e5999a693..b7e9f0df1a 100644
--- a/resources/shaders/overhang.shader
+++ b/resources/shaders/overhang.shader
@@ -1,5 +1,6 @@
 [shaders]
 vertex =
+    #version 120
     uniform highp mat4 u_modelMatrix;
     uniform highp mat4 u_viewProjectionMatrix;
     uniform highp mat4 u_normalMatrix;
@@ -21,6 +22,7 @@ vertex =
     }
 
 fragment =
+    #version 120
     uniform mediump vec4 u_ambientColor;
     uniform mediump vec4 u_diffuseColor;
     uniform mediump vec4 u_specularColor;
diff --git a/resources/shaders/striped.shader b/resources/shaders/striped.shader
index 0114f0b2cb..837264d8b1 100644
--- a/resources/shaders/striped.shader
+++ b/resources/shaders/striped.shader
@@ -1,5 +1,6 @@
 [shaders]
 vertex =
+    #version 120
     uniform highp mat4 u_modelMatrix;
     uniform highp mat4 u_viewProjectionMatrix;
     uniform highp mat4 u_normalMatrix;
@@ -23,6 +24,7 @@ vertex =
     }
 
 fragment =
+    #version 120
     uniform mediump vec4 u_ambientColor;
     uniform mediump vec4 u_diffuseColor1;
     uniform mediump vec4 u_diffuseColor2;
diff --git a/resources/shaders/transparent_object.shader b/resources/shaders/transparent_object.shader
index cd27a40769..0a01f918b5 100644
--- a/resources/shaders/transparent_object.shader
+++ b/resources/shaders/transparent_object.shader
@@ -1,5 +1,6 @@
 [shaders]
 vertex =
+    #version 120
     uniform highp mat4 u_modelMatrix;
     uniform highp mat4 u_viewProjectionMatrix;
     uniform highp mat4 u_normalMatrix;
@@ -21,6 +22,7 @@ vertex =
     }
 
 fragment =
+    #version 120
     uniform mediump vec4 u_ambientColor;
     uniform mediump vec4 u_diffuseColor;
     uniform highp vec3 u_lightPosition;