diff --git a/libs_required/ACG/Math/BezierCurveT.hh b/libs_required/ACG/Math/BezierCurveT.hh
index 5e599c603ac6427a8bac8767f3072a3f749cd492..f3588f1ba5c7c94213acd98ab031e2ba76be9ff2 100644
--- a/libs_required/ACG/Math/BezierCurveT.hh
+++ b/libs_required/ACG/Math/BezierCurveT.hh
@@ -111,7 +111,7 @@ public:
 //=============================================================================
 #if defined(INCLUDE_TEMPLATES) && !defined(ACG_BEZIERCURVE_C)
 #define ACG_BEZIERCURVE_TEMPLATES
-#include "BezierCurveT.cc"
+#include "BezierCurveT_impl.hh"
 #endif
 //=============================================================================
 #endif // ACG_BEZIERCURVE_HH defined