diff --git a/bridge.cpp b/bridge.cpp
index d54f059287..b6cae0e7b3 100644
--- a/bridge.cpp
+++ b/bridge.cpp
@@ -313,6 +313,7 @@ void Bridge::tab_A_before_B(long A, long B)
 
     if (Client *a = clientForId(A))
     if (Client *b = clientForId(B))
+    if (a != b)
         a->tabBefore(b, true);
 }
 
@@ -328,6 +329,7 @@ void Bridge::tab_A_behind_B(long A, long B)
 
     if (Client *a = clientForId(A))
     if (Client *b = clientForId(B))
+    if (a != b)
         a->tabBehind(b, true);
 }