diff --git a/code/nel/src/3d/driver/opengl3/driver_opengl_extension.cpp b/code/nel/src/3d/driver/opengl3/driver_opengl_extension.cpp
index 16b14a3da..1b6bf9d01 100644
--- a/code/nel/src/3d/driver/opengl3/driver_opengl_extension.cpp
+++ b/code/nel/src/3d/driver/opengl3/driver_opengl_extension.cpp
@@ -170,6 +170,14 @@ PFNGLGETCOMPRESSEDTEXIMAGEPROC					nglGetCompressedTexImage;
 
 PFNGLBLENDCOLORPROC								nglBlendColor;
 
+PFNGLFENCESYNCPROC								nglFenceSync;
+PFNGLISSYNCPROC									nglIsSync;
+PFNGLDELETESYNCPROC								nglDeleteSync;
+PFNGLCLIENTWAITSYNCPROC							nglClientWaitSync;
+PFNGLWAITSYNCPROC								nglWaitSync;
+PFNGLGETINTEGER64VPROC							nglGetInteger64v;
+PFNGLGETSYNCIVPROC								nglGetSynciv;
+
 // GL_ARB_separate_shader_objects
 PFNGLUSEPROGRAMSTAGESPROC						nglUseProgramStages;
 PFNGLACTIVESHADERPROGRAMPROC					nglActiveShaderProgram;
@@ -465,6 +473,14 @@ static bool setupGLCore(std::vector<const char *> &glext)
 
 	CHECK_ADDRESS(PFNGLBLENDCOLORPROC, glBlendColor);
 
+	CHECK_ADDRESS(PFNGLFENCESYNCPROC, glFenceSync);
+	CHECK_ADDRESS(PFNGLISSYNCPROC, glIsSync);
+	CHECK_ADDRESS(PFNGLDELETESYNCPROC, glDeleteSync);
+	CHECK_ADDRESS(PFNGLCLIENTWAITSYNCPROC, glClientWaitSync);
+	CHECK_ADDRESS(PFNGLWAITSYNCPROC, glWaitSync);
+	CHECK_ADDRESS(PFNGLGETINTEGER64VPROC, glGetInteger64v);
+	CHECK_ADDRESS(PFNGLGETSYNCIVPROC, glGetSynciv);
+
 	return true;
 }
 
diff --git a/code/nel/src/3d/driver/opengl3/driver_opengl_extension.h b/code/nel/src/3d/driver/opengl3/driver_opengl_extension.h
index 732e0249d..c73badce3 100644
--- a/code/nel/src/3d/driver/opengl3/driver_opengl_extension.h
+++ b/code/nel/src/3d/driver/opengl3/driver_opengl_extension.h
@@ -256,6 +256,14 @@ extern PFNGLGETCOMPRESSEDTEXIMAGEPROC					nglGetCompressedTexImage;
 
 extern PFNGLBLENDCOLORPROC								nglBlendColor;
 
+extern PFNGLFENCESYNCPROC								nglFenceSync;
+extern PFNGLISSYNCPROC									nglIsSync;
+extern PFNGLDELETESYNCPROC								nglDeleteSync;
+extern PFNGLCLIENTWAITSYNCPROC							nglClientWaitSync;
+extern PFNGLWAITSYNCPROC								nglWaitSync;
+extern PFNGLGETINTEGER64VPROC							nglGetInteger64v;
+extern PFNGLGETSYNCIVPROC								nglGetSynciv;
+
 // GL_ARB_separate_shader_objects
 extern PFNGLUSEPROGRAMSTAGESPROC						nglUseProgramStages;
 extern PFNGLACTIVESHADERPROGRAMPROC						nglActiveShaderProgram;