diff --git a/src/IntPatch/IntPatch_InterferencePolyhedron.cxx b/src/IntPatch/IntPatch_InterferencePolyhedron.cxx
index 9f920f600e..65b183711a 100644
--- a/src/IntPatch/IntPatch_InterferencePolyhedron.cxx
+++ b/src/IntPatch/IntPatch_InterferencePolyhedron.cxx
@@ -855,7 +855,7 @@ Standard_Boolean IntPatch_InterferencePolyhedron::TangentZoneValue
     // Arrays are increased to eliminate gcc warning.
     Standard_Real parO[10], parT[10];
     Standard_Integer nbNoInserted=0;
-    Standard_Integer piToInsert[10];
+    Standard_Integer piToInsert[17]; // for GCC 4.9
 
     for (nob=0; nob<3; nob++) {
       //processing of the object segment P[nob], P[nob+1]