diff --git a/lib/Slic3r/Config.pm b/lib/Slic3r/Config.pm
index ae166b6c5..26ced03d7 100644
--- a/lib/Slic3r/Config.pm
+++ b/lib/Slic3r/Config.pm
@@ -3,7 +3,7 @@ use strict;
 use warnings;
 use utf8;
 
-use List::Util qw(first);
+use List::Util qw(first max);
 
 # cemetery of old config settings
 our @Ignore = qw(duplicate_x duplicate_y multiply_x multiply_y support_material_tool acceleration
@@ -319,6 +319,15 @@ sub validate {
             if defined first { $_ } @{ $self->retract_layer_change };
     }
     
+    # extrusion widths
+    {
+        my $max_nozzle_diameter = max(@{ $self->nozzle_diameter });
+        die "Invalid extrusion width (too large)\n"
+            if defined first { $_ > 10 * $max_nozzle_diameter }
+                map $self->get("${_}_extrusion_width"),
+                qw(perimeter infill solid_infill top_infill support_material first_layer);
+    }
+    
     # general validation, quick and dirty
     foreach my $opt_key (@{$self->get_keys}) {
         my $opt = $Options->{$opt_key};