Let the buf to be a integer not floot.

Gemfile.lock

@@ -6,17 +6,18 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    celluloid (0.15.2)
+      timers (~> 1.1.0)
     childprocess (0.3.9)
       ffi (~> 1.0, >= 1.0.11)
     coderay (1.0.9)
     coffee-script (2.2.0)
       coffee-script-source
       execjs
-    coffee-script-source (1.6.2)
+    coffee-script-source (1.7.0)
     diff-lcs (1.2.4)
-    execjs (1.4.0)
-      multi_json (~> 1.0)
-    ffi (1.9.0)
+    execjs (2.0.2)
+    ffi (1.9.3)
     formatador (0.2.4)
     guard (1.8.0)
       formatador (>= 0.2.4)
@@ -43,23 +44,21 @@ GEM
       multi_json
       rainbow
       sprockets (~> 2)
-    listen (1.1.6)
+    listen (2.7.5)
+      celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
-      rb-kqueue (>= 0.2)
     lumberjack (1.0.3)
     method_source (0.8.1)
-    multi_json (1.7.6)
+    multi_json (1.10.1)
     pry (0.9.12.2)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
     rack (1.5.2)
     rainbow (1.1.4)
-    rb-fsevent (0.9.3)
-    rb-inotify (0.9.0)
-      ffi (>= 0.5.0)
-    rb-kqueue (0.2.0)
+    rb-fsevent (0.9.4)
+    rb-inotify (0.9.4)
       ffi (>= 0.5.0)
     rspec (2.13.0)
       rspec-core (~> 2.13.0)
@@ -83,6 +82,7 @@ GEM
       tilt (~> 1.1, != 1.3.0)
     thor (0.18.1)
     tilt (1.4.1)
+    timers (1.1.0)
     websocket (1.0.7)
 
 PLATFORMS
@@ -95,3 +95,6 @@ DEPENDENCIES
   jasmine-headless-webkit
   jquery-bootstrap-pagination!
   rb-fsevent
+
+BUNDLED WITH
+   1.11.2

src/jquery-bootstrap-pagination.coffee

@@ -119,7 +119,7 @@
         # else if the current page is greater than the maximum display then
         # show pages on both side of the current page:
         else if current_page > max - 1
-          buf = max / 2
+          buf = Math.ceil(max / 2)
           pages.push page for page in [(current_page - buf)..(current_page + buf)]
         # else if the current page is less than or equal to the sub max then only
         # show from 2 to the max page.