diff --git a/src/graphics/glwrap.cpp b/src/graphics/glwrap.cpp
index bfb5a7e11..0f51896b9 100644
--- a/src/graphics/glwrap.cpp
+++ b/src/graphics/glwrap.cpp
@@ -47,7 +47,9 @@ PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation;
 PFNGLBLENDEQUATIONPROC glBlendEquation;
 PFNGLVERTEXATTRIBDIVISORPROC glVertexAttribDivisor;
 PFNGLDRAWARRAYSINSTANCEDPROC glDrawArraysInstanced;
+PFNGLDRAWELEMENTSBASEVERTEXPROC glDrawElementsBaseVertex;
 PFNGLDRAWELEMENTSINSTANCEDPROC glDrawElementsInstanced;
+PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glDrawElementsInstancedBaseVertex;
 PFNGLDELETEBUFFERSPROC glDeleteBuffers;
 PFNGLGENVERTEXARRAYSPROC glGenVertexArrays;
 PFNGLBINDVERTEXARRAYPROC glBindVertexArray;
@@ -201,7 +203,9 @@ void initGL()
     glBlendEquation = (PFNGLBLENDEQUATIONPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquation");
     glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISORPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribDivisor");
     glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDPROC)IRR_OGL_LOAD_EXTENSION("glDrawArraysInstanced");
+    glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)IRR_OGL_LOAD_EXTENSION("glDrawElementsBaseVertex");
     glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDPROC)IRR_OGL_LOAD_EXTENSION("glDrawElementsInstanced");
+    glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)IRR_OGL_LOAD_EXTENSION("glDrawElementsInstancedBaseVertex");
     glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glDeleteBuffers");
     glGenVertexArrays = (PFNGLGENVERTEXARRAYSPROC)IRR_OGL_LOAD_EXTENSION("glGenVertexArrays");
     glBindVertexArray = (PFNGLBINDVERTEXARRAYPROC)IRR_OGL_LOAD_EXTENSION("glBindVertexArray");
diff --git a/src/graphics/glwrap.hpp b/src/graphics/glwrap.hpp
index 186e0c9dc..11cf8474b 100644
--- a/src/graphics/glwrap.hpp
+++ b/src/graphics/glwrap.hpp
@@ -73,7 +73,9 @@ extern PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation;
 extern PFNGLBLENDEQUATIONPROC glBlendEquation;
 extern PFNGLVERTEXATTRIBDIVISORPROC glVertexAttribDivisor;
 extern PFNGLDRAWARRAYSINSTANCEDPROC glDrawArraysInstanced;
+extern PFNGLDRAWELEMENTSBASEVERTEXPROC glDrawElementsBaseVertex;
 extern PFNGLDRAWELEMENTSINSTANCEDPROC glDrawElementsInstanced;
+extern PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glDrawElementsInstancedBaseVertex;
 extern PFNGLDELETEBUFFERSPROC glDeleteBuffers;
 extern PFNGLGENVERTEXARRAYSPROC glGenVertexArrays;
 extern PFNGLBINDVERTEXARRAYPROC glBindVertexArray;