diff --git a/plugins/sensors/freeipmi b/plugins/sensors/freeipmi
index 6da7d807..0d34fb06 100755
--- a/plugins/sensors/freeipmi
+++ b/plugins/sensors/freeipmi
@@ -158,7 +158,9 @@ END
     }
   }
 
-  exit 0;
+  unless ( $ENV{MUNIN_CAP_DIRTYCONFIG} == 1 ) {
+    exit 0;
+  }
 }
 
 foreach my $type (keys %sensors) {
diff --git a/plugins/sensors/hwmon b/plugins/sensors/hwmon
index 4ad3905b..5e755436 100755
--- a/plugins/sensors/hwmon
+++ b/plugins/sensors/hwmon
@@ -173,7 +173,9 @@ END
     }
   }
 
-  exit 0;
+  unless ( $ENV{MUNIN_CAP_DIRTYCONFIG} == 1 ) {
+    exit 0;
+  }
 }
 
 foreach my $type (keys %sensors) {
diff --git a/plugins/snmp/snmp__apc_pdu b/plugins/snmp/snmp__apc_pdu
index 6c92e129..62d276e6 100755
--- a/plugins/snmp/snmp__apc_pdu
+++ b/plugins/snmp/snmp__apc_pdu
@@ -103,7 +103,9 @@ phase$phaseIndex.critical $phaseData->{$phaseIndex}->{'overloadThreshold'}
 END
     }
 
-    exit 0;
+    unless ( $ENV{MUNIN_CAP_DIRTYCONFIG} == 1 ) {
+      exit 0;
+    }
 }
 
 my $phasesLoad = $session->get_entries(-columns => [$oidPhaseLoad]);