diff --git a/glslang/Include/glslang_c_interface.h b/glslang/Include/glslang_c_interface.h
index d78c3ae1..c114bbf5 100644
--- a/glslang/Include/glslang_c_interface.h
+++ b/glslang/Include/glslang_c_interface.h
@@ -208,7 +208,7 @@ typedef struct glslang_input_s {
     const char* code;
     const char* entrypoint; // This is what actually gets called by the GPU. Best to leave it at 'main' or something so opengl doesn't trip over itself.
     const char* source_entrypoint; // This just renames the source entrypoint in the code to 'entrypoint' and should be what is used to set different entrypoint names.
-    bool invert_y;
+    int invert_y;
     int default_version;
     glslang_profile_t default_profile;
     int force_default_version_and_profile;