diff --git a/drivers/gles2/shader_compiler_gles2.cpp b/drivers/gles2/shader_compiler_gles2.cpp
index 24b89aedc2..5dec6f2fee 100644
--- a/drivers/gles2/shader_compiler_gles2.cpp
+++ b/drivers/gles2/shader_compiler_gles2.cpp
@@ -80,7 +80,7 @@ static String _opstr(SL::Operator p_op) {
 
 static String _mkid(const String &p_id) {
 
-	String id = "m_" + p_id;
+	String id = "m_" + p_id.replace("__", "_dus_");
 	return id.replace("__", "_dus_"); //doubleunderscore is reserved in glsl
 }
 
diff --git a/drivers/gles3/shader_compiler_gles3.cpp b/drivers/gles3/shader_compiler_gles3.cpp
index f43943bdff..4e4d896bd7 100644
--- a/drivers/gles3/shader_compiler_gles3.cpp
+++ b/drivers/gles3/shader_compiler_gles3.cpp
@@ -166,7 +166,7 @@ static String _opstr(SL::Operator p_op) {
 
 static String _mkid(const String &p_id) {
 
-	String id = "m_" + p_id;
+	String id = "m_" + p_id.replace("__", "_dus_");
 	return id.replace("__", "_dus_"); //doubleunderscore is reserved in glsl
 }