1 files changed, 1 insertions, 1 deletions
diff --git a/src/func.c b/src/func.c
index ae2b76719..110dfe97a 100644
--- a/src/func.c
+++ b/src/func.c
@@ -1530,7 +1530,7 @@ static void sumInverse(sqlite3_context *context, int argc, sqlite3_value**argv){
         p->overflow = 1;
       }
     }else{
-      p->rSum += sqlite3_value_double(argv[0]);
+      p->rSum -= sqlite3_value_double(argv[0]);
       p->approx = 1;
     }
   }