diff --git a/jstests/slowNightly/geo_polygon.js b/jstests/slowNightly/geo_polygon.js
index 7105c1ed30d..b4dd3e85669 100644
--- a/jstests/slowNightly/geo_polygon.js
+++ b/jstests/slowNightly/geo_polygon.js
@@ -1,35 +1,49 @@
 t = db.geo_polygon4;
 t.drop();
 
-num = 0;
-for ( x = -180; x < 180; x += .5 ){
-    for ( y = -180; y < 180; y += .5 ){
-        o = { _id : num++ , loc : [ x , y ] };
-        t.save( o );
-    }
+shouldRun = true;
+
+bi = db.adminCommand( "buildinfo" ).sysInfo
+if ( bi.indexOf( "erh2" ) >= 0 ){
+    // this machine runs this test very slowly
+    // it seems to be related to osx 10.5
+    // if this machine gets upgraded, we should remove this check
+    // the os x debug builders still run thistest, so i'm not worried about it
+    shouldRun = false;
 }
 
-var numTests = 31;
-for( var n = 0; n < numTests; n++ ){
-    t.dropIndexes()
-    t.ensureIndex( { loc : "2d" }, { bits : 2 + n } );
+if ( shouldRun ) {
 
-
-    assert.eq( 9 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [1,1], [0,2]] }}} ).count() , "Triangle Test" );
-    assert.eq( num , t.find( { loc : { "$within" : { "$polygon" : [ [-180,-180], [-180,180], [180,180], [180,-180] ] } } } ).count() , "Bounding Box Test" );
-
-    assert.eq( 441 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,10], [10,10], [10,0] ] } } } ).count() , "Square Test" );
-    assert.eq( 25 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,2], [2,2], [2,0] ] } } } ).count() , "Square Test 2" );
-    if(0){ // SERVER-3726
-    assert.eq( 331 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,10], [10,10], [10,0], [5,5] ] } } } ).count() , "Square Missing Chunk Test" );
-    assert.eq( 21 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,2], [2,2], [2,0], [1,1] ] } } } ).count() , "Square Missing Chunk Test 2" );
+    num = 0;
+    for ( x = -180; x < 180; x += .5 ){
+        for ( y = -180; y < 180; y += .5 ){
+            o = { _id : num++ , loc : [ x , y ] };
+            t.save( o );
+        }
     }
 
-    assert.eq( 1 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [0,0], [0,0]] }}} ).count() , "Point Test" );
-    if(0){ // SERVER-3725
-    assert.eq( 5 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [1,0], [2,0]] }}} ).count() , "Line Test 1" );
-    assert.eq( 3 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [0,0], [1,0]] }}} ).count() , "Line Test 2" );
-    assert.eq( 5 , t.find( { loc: { "$within": { "$polygon" : [[0,2], [0,1], [0,0]] }}} ).count() , "Line Test 3" );
+    var numTests = 31;
+    for( var n = 0; n < numTests; n++ ){
+        t.dropIndexes()
+        t.ensureIndex( { loc : "2d" }, { bits : 2 + n } );
+
+
+        assert.eq( 9 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [1,1], [0,2]] }}} ).count() , "Triangle Test" );
+        assert.eq( num , t.find( { loc : { "$within" : { "$polygon" : [ [-180,-180], [-180,180], [180,180], [180,-180] ] } } } ).count() , "Bounding Box Test" );
+
+        assert.eq( 441 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,10], [10,10], [10,0] ] } } } ).count() , "Square Test" );
+        assert.eq( 25 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,2], [2,2], [2,0] ] } } } ).count() , "Square Test 2" );
+        if(0){ // SERVER-3726
+            assert.eq( 331 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,10], [10,10], [10,0], [5,5] ] } } } ).count() , "Square Missing Chunk Test" );
+            assert.eq( 21 , t.find( { loc : { "$within" : { "$polygon" : [ [0,0], [0,2], [2,2], [2,0], [1,1] ] } } } ).count() , "Square Missing Chunk Test 2" );
+        }
+
+        assert.eq( 1 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [0,0], [0,0]] }}} ).count() , "Point Test" );
+        if(0){ // SERVER-3725
+            assert.eq( 5 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [1,0], [2,0]] }}} ).count() , "Line Test 1" );
+            assert.eq( 3 , t.find( { loc: { "$within": { "$polygon" : [[0,0], [0,0], [1,0]] }}} ).count() , "Line Test 2" );
+            assert.eq( 5 , t.find( { loc: { "$within": { "$polygon" : [[0,2], [0,1], [0,0]] }}} ).count() , "Line Test 3" );
+        }
+        assert.eq( 3 , t.find( { loc: { "$within": { "$polygon" : [[0,1], [0,0], [0,0]] }}} ).count() , "Line Test 4" );
     }
-    assert.eq( 3 , t.find( { loc: { "$within": { "$polygon" : [[0,1], [0,0], [0,0]] }}} ).count() , "Line Test 4" );
 }