diff --git a/src/reconstruction/fastGapFill/AuxillaryFiles/generateSUXComp.m b/src/reconstruction/fastGapFill/AuxillaryFiles/generateSUXComp.m
index a0f3da7beb..7ec4b3c4a0 100644
--- a/src/reconstruction/fastGapFill/AuxillaryFiles/generateSUXComp.m
+++ b/src/reconstruction/fastGapFill/AuxillaryFiles/generateSUXComp.m
@@ -43,7 +43,7 @@
 
 % create KEGG Matrix - U
 if ~exist('KEGGMatrixLoad', 'var')
-    KEGGMatrixLoad = 1;
+    KEGGMatrixLoad = 0;
 end
 if KEGGMatrixLoad
     load KEGGMatrix