diff --git a/MobileGL/MG_Util/ShaderTranspiler/ShaderSourceProcessor.cpp b/MobileGL/MG_Util/ShaderTranspiler/ShaderSourceProcessor.cpp
index 5a83a113..682ad838 100644
--- a/MobileGL/MG_Util/ShaderTranspiler/ShaderSourceProcessor.cpp
+++ b/MobileGL/MG_Util/ShaderTranspiler/ShaderSourceProcessor.cpp
@@ -4,14 +4,6 @@ namespace MobileGL {
     namespace MG_Util {
         namespace ShaderTranspiler {
             void PreprocessShaderSource(ShaderStage stage, String& source) {
-                // remove #line directives
-                SizeT linedirPos = source.find("#line");
-                while (linedirPos != std::string::npos) {
-                    SizeT newlinePos = source.find('\n', linedirPos);
-                    source = source.replace(linedirPos, newlinePos - linedirPos, "");
-                    linedirPos = source.find("#line", linedirPos);
-                }
-
                 // remove multi-line comment
                 size_t commentStartPos = source.find("/*");
                 while (commentStartPos != std::string::npos) {
@@ -21,6 +13,15 @@ namespace MobileGL {
                     commentStartPos = source.find("/*", commentStartPos);
                 }
 
+                // remove #line directives
+                SizeT linedirPos = source.find("#line");
+                while (linedirPos != std::string::npos) {
+                    SizeT newlinePos = source.find('\n', linedirPos);
+                    // + length of "\n"
+                    source = source.replace(linedirPos, newlinePos - linedirPos + 1, "");
+                    linedirPos = source.find("#line", linedirPos);
+                }
+
                 // force #version
                 ShaderProfile profile = ShaderProfile::Core;
                 SizeT versionPos = source.find("#version");