diff --git a/sys/netinet/ip_icmp.c b/sys/netinet/ip_icmp.c
--- a/sys/netinet/ip_icmp.c
+++ b/sys/netinet/ip_icmp.c
@@ -1148,7 +1148,7 @@
 			}
 		}
 	}
-	MPASS(V_icmplim + V_icmplim_curr_jitter >= 0);
+	MPASS(V_icmplim == 0 || V_icmplim > V_icmplim_jitter);
 
 	return (error);
 }
diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c
--- a/sys/netinet6/icmp6.c
+++ b/sys/netinet6/icmp6.c
@@ -2817,7 +2817,7 @@
 			}
 		}
 	}
-	MPASS(V_icmp6errppslim + V_icmp6lim_curr_jitter >= 0);
+	MPASS(V_icmp6errppslim == 0 || V_icmp6errppslim > V_icmp6lim_jitter);
 
 	return (error);
 }