diff --git a/src/ChFi3d/ChFi3d_Builder_C1.cxx b/src/ChFi3d/ChFi3d_Builder_C1.cxx
index 93f20646ac..1996ca9d19 100644
--- a/src/ChFi3d/ChFi3d_Builder_C1.cxx
+++ b/src/ChFi3d/ChFi3d_Builder_C1.cxx
@@ -2115,6 +2115,9 @@ void ChFi3d_Builder::PerformIntersectionAtEnd(const Standard_Integer Index)
       F=Face[nb-1];
       if (!prolface[nb-1]) faceprol[nb-1]=F;
     }
+
+    if (F.IsNull()) throw Standard_NullObject("IntersectionAtEnd : Trying to intersect with NULL face");
+
     Sfacemoins1=BRep_Tool::Surface(F);
     Handle(Geom_Curve) cint;
     Handle(Geom2d_Curve) C2dint1, C2dint2,cface,cfacemoins1;
diff --git a/tests/bugs/modalg_8/bug32930 b/tests/bugs/modalg_8/bug32930
new file mode 100644
index 0000000000..be24c74646
--- /dev/null
+++ b/tests/bugs/modalg_8/bug32930
@@ -0,0 +1,26 @@
+puts "TODO OCC32930 ALL: Tcl Exception"
+puts "TODO OCC32930 ALL: TEST INCOMPLETE"
+
+puts "============"
+puts "OCC32930: Modeling Algorithms - Crash in PerformIntersectionAtEnd when no face was found"
+puts "============"
+puts ""
+
+# Load & prepare data.
+restore [locate_data_file bug32930.brep] b
+explode b E
+
+# Make screenshot before filleting.
+smallview
+donly b b_10
+fit
+xwd $imagedir/${test_image}_1.png
+
+# Make fillet.
+blend result b 1 b_10
+
+# Make screenshot after filleting.
+donly result
+fit
+xwd $imagedir/${test_image}_2.png
+