diff --git a/Chipmunk2D-7.0.2/src/prime.h b/Chipmunk2D-7.0.2/src/prime.h
new file mode 100644
--- /dev/null
+++ b/Chipmunk2D-7.0.2/src/prime.h
@@ -0,0 +1,68 @@
+/* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+// Used for resizing hash tables.
+// Values approximately double.
+// http://planetmath.org/encyclopedia/GoodHashTablePrimes.html
+static int primes[] = {
+	5,
+	13,
+	23,
+	47,
+	97,
+	193,
+	389,
+	769,
+	1543,
+	3079,
+	6151,
+	12289,
+	24593,
+	49157,
+	98317,
+	196613,
+	393241,
+	786433,
+	1572869,
+	3145739,
+	6291469,
+	12582917,
+	25165843,
+	50331653,
+	100663319,
+	201326611,
+	402653189,
+	805306457,
+	1610612741,
+	0,
+};
+
+static inline int
+next_prime(int n)
+{
+	int i = 0;
+	while(n > primes[i]){
+		i++;
+		cpAssertHard(primes[i], "Tried to resize a hash table to a size greater than 1610612741 O_o"); // realistically this should never happen
+	}
+	
+	return primes[i];
+}
diff --git a/chiphunk.cabal b/chiphunk.cabal
--- a/chiphunk.cabal
+++ b/chiphunk.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: d58a7de4888db68e4e113b78844f012f2a15a43d346c20e6854277dc186f3f4d
+-- hash: c3a385a692c010c72a119863e600c217900dba199d83f7c9018487a5ec11bafc
 
 name:           chiphunk
-version:        0.1.0.1
+version:        0.1.0.2
 synopsis:       Haskell bindings for Chipmunk2D physics engine
 description:    Please see the README on GitHub at <https://github.com/CthulhuDen/chiphunk#readme>
 category:       Physics
@@ -51,6 +51,7 @@
     Chipmunk2D-7.0.2/include/chipmunk/cpTransform.h
     Chipmunk2D-7.0.2/include/chipmunk/cpVect.h
     src/Chiphunk/wrapper.h
+    Chipmunk2D-7.0.2/src/prime.h
 
 flag library-only
   manual: False