diff --git a/code/nel/src/3d/program.cpp b/code/nel/src/3d/program.cpp
index facf877fc..390fdf314 100644
--- a/code/nel/src/3d/program.cpp
+++ b/code/nel/src/3d/program.cpp
@@ -94,7 +94,7 @@ const char *CProgramIndex::Names[NUM_UNIFORMS] =
 
 void IProgram::buildInfo(CSource *source)
 {
-	nlassert(!m_Source);
+	// nlassert(!m_Source); // VALID: When deleting driver and creating new one.
 
 	m_Source = source;