diff --git a/src/rlgl.h b/src/rlgl.h
index 923f84dfd..073cecd68 100644
--- a/src/rlgl.h
+++ b/src/rlgl.h
@@ -3685,6 +3685,8 @@ void rlUnloadTexture(unsigned int id)
 // NOTE: Only supports GPU mipmap generation
 void rlGenTextureMipmaps(unsigned int id, int width, int height, int format, int *mipmaps)
 {
+    if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return; }
+
 #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
     glBindTexture(GL_TEXTURE_2D, id);