diff --git a/lib_com/options.h b/lib_com/options.h
index 23bacc0d5e227e34340314d17d9a63d6471dec21..c334f272e06347af343528fa689233c91aa6164b 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -219,6 +219,7 @@
 
 #define FIX_ACCESS_WITHIN_NULL_STRUCT_MC_BW_SWITCHING   /* FhG: fix usan error in MCT with bw swicthing */
 #define NONBE_FIX_986_MC_BW_SWITCHING                   /* FhG: fix crash in bw and br switching with MC */
+#define NONBE_FIX_1000_G1_G2_SWB_TBE                          /* VA: issue 1000: avoid div by zero due to g1 + g2 being zero in SWB TBE */
 
 /* #################### End BASOP porting switches ############################ */
 
diff --git a/lib_com/swb_tbe_com.c b/lib_com/swb_tbe_com.c
index 13541d7c32b7764919ada696a5c00b04d069bb0a..f10a8e15207ce350b1145daf9a5b1a21e40c2f1c 100644
--- a/lib_com/swb_tbe_com.c
+++ b/lib_com/swb_tbe_com.c
@@ -938,6 +938,14 @@ void GenShapedSHBExcitation(
                 }
 
                 den = 4.0f * c0 * c2 - c4 * c4;
+
+#ifdef NONBE_FIX_1000_G1_G2_SWB_TBE
+                if ( den == 0.0f )
+                {
+                    den = 1e-7f;
+                }
+#endif
+
                 g1 = ( c3 * c4 - 2 * c1 * c2 ) / den;
                 g2 = ( c1 * c4 - 2 * c0 * c3 ) / den;
 
@@ -964,7 +972,17 @@ void GenShapedSHBExcitation(
                 else
                 {
                     /* normalize gain */
+#ifdef NONBE_FIX_1000_G1_G2_SWB_TBE
+                    temp = 0.0f;
+                    if ( g1 + g2 == 0.0f )
+                    {
+                        temp = 1e-7f;
+                    }
+
+                    g = g2 / ( g1 + g2 + temp );
+#else
                     g = g2 / ( g1 + g2 );
+#endif
 
                     /* quantization of the mixing factor */
                     cbsize = 1 << NUM_BITS_SHB_VF;