Fix variable mismatch

Change-Id: Iae2f9f9652cecdf7e754700b2fe107ad61ff8ff9
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
diff --git a/src/plugins/nat/in2out.c b/src/plugins/nat/in2out.c
index e4dbe91..50d8f84 100755
--- a/src/plugins/nat/in2out.c
+++ b/src/plugins/nat/in2out.c
@@ -1855,7 +1855,7 @@
 
               if (ip4_is_fragment (ip1))
                 {
-                  next0 = SNAT_IN2OUT_NEXT_REASS;
+                  next1 = SNAT_IN2OUT_NEXT_REASS;
                   goto trace01;
                 }
             }