diff --git a/src/glimports.h b/src/glimports.h
index eea67ff6..bd36bc7d 100644
--- a/src/glimports.h
+++ b/src/glimports.h
@@ -505,6 +505,7 @@ GL_IMPORT_NV___(true,  PFNGLGENQUERIESPROC,                        glGenQueries)
 GL_IMPORT_NV___(true,  PFNGLDELETEQUERIESPROC,                     glDeleteQueries);
 GL_IMPORT_NV___(true,  PFNGLBEGINQUERYPROC,                        glBeginQuery);
 GL_IMPORT_NV___(true,  PFNGLENDQUERYPROC,                          glEndQuery);
+GL_IMPORT_NV___(true,  PFNGLGETQUERYOBJECTIVPROC,                  glGetQueryObjectiv);
 GL_IMPORT_NV___(true,  PFNGLGETQUERYOBJECTUI64VPROC,               glGetQueryObjectui64v);
 
 GL_IMPORT      (true,  PFNGLINVALIDATEFRAMEBUFFERPROC,             glInvalidateFramebuffer, glDiscardFramebufferEXT);
@@ -567,6 +568,7 @@ GL_IMPORT______(true,  PFNGLGENQUERIESPROC,                        glGenQueries)
 GL_IMPORT______(true,  PFNGLDELETEQUERIESPROC,                     glDeleteQueries);
 GL_IMPORT______(true,  PFNGLBEGINQUERYPROC,                        glBeginQuery);
 GL_IMPORT______(true,  PFNGLENDQUERYPROC,                          glEndQuery);
+GL_IMPORT______(true,  PFNGLGETQUERYOBJECTIVPROC,                  glGetQueryObjectiv);
 GL_IMPORT______(true,  PFNGLGETQUERYOBJECTUI64VPROC,               glGetQueryObjectui64v);
 
 GL_IMPORT______(true,  PFNGLDRAWARRAYSINDIRECTPROC,                glDrawArraysIndirect);
diff --git a/src/renderer_gl.h b/src/renderer_gl.h
index 52a85c84..8a306314 100644
--- a/src/renderer_gl.h
+++ b/src/renderer_gl.h
@@ -393,6 +393,10 @@ typedef uint64_t GLuint64;
 #	define GL_QUERY_RESULT 0x8866
 #endif // GL_QUERY_RESULT
 
+#ifndef GL_QUERY_RESULT_AVAILABLE
+#	define GL_QUERY_RESULT_AVAILABLE 0x8867
+#endif // GL_QUERY_RESULT_AVAILABLE
+
 #ifndef GL_READ_FRAMEBUFFER
 #	define GL_READ_FRAMEBUFFER 0x8CA8
 #endif /// GL_READ_FRAMEBUFFER