diff --git a/inno_setup/gnucash-mingw64.iss b/inno_setup/gnucash-mingw64.iss
index 18e99315..3b73a58f 100644
--- a/inno_setup/gnucash-mingw64.iss
+++ b/inno_setup/gnucash-mingw64.iss
@@ -462,7 +462,7 @@ begin
       { Adapt GUILE_LOAD_PATH parameter and prevent cygwin interference in SCHEME_LIBRARY_PATH }
       if (Pos('GUILE_LOAD_PATH', EnvStrList[iLineCounter]) = 1) then
       begin
-        StringChangeEx(EnvStrList[iLineCounter], '{GUILE_LOAD_PATH}', '{GNC_HOME}/share/guile/1.8;{GUILE_LOAD_PATH}', True);
+        StringChangeEx(EnvStrList[iLineCounter], '{GUILE_LOAD_PATH}', '{GNC_HOME}/share/guile/2.0;{GUILE_LOAD_PATH}', True);
 
         EnvStrList[iLineCounter] := EnvStrList[iLineCounter] + #13#10 + '# Clear SCHEME_LIBRARY_PATH to prevent interference from other guile installations (like cygwin)' + #13#10;
         EnvStrList[iLineCounter] := EnvStrList[iLineCounter] + 'SCHEME_LIBRARY_PATH=' + #13#10;