diff --git a/plugins/if_ b/plugins/if_
index d2b5460..cc2810b 100644
--- a/plugins/if_
+++ b/plugins/if_
@@ -1,7 +1,7 @@
 config_if() {
   INTERFACE=$1
   echo "graph_order down up"
-  echo "graph_title $INTERFACE traffic"
+  echo "graph_title Interface $INTERFACE traffic"
   echo "graph_args --base 1000"
   echo "graph_vlabel bits in (-) / out (+) per \${graph_period}"
   echo "graph_category network"
diff --git a/plugins/if_err_ b/plugins/if_err_
index 97c91c3..3a7ac56 100644
--- a/plugins/if_err_
+++ b/plugins/if_err_
@@ -1,7 +1,7 @@
 config_if_err() {
   INTERFACE=$1
   echo "graph_order rcvd trans"
-  echo "graph_title $INTERFACE errors"
+  echo "graph_title Interface $INTERFACE errors"
   echo "graph_args --base 1000"
   echo "graph_vlabel packets in (-) / out (+) per \${graph_period}"
   echo "graph_category network"