diff --git a/.bfilter.c.swo b/.bfilter.c.swo
new file mode 100644
index 0000000..8df8992
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diff --git a/.bfilter.h.swo b/.bfilter.h.swo
new file mode 100644
index 0000000..1504c24
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diff --git a/.bfilter.py.swo b/.bfilter.py.swo
new file mode 100644
index 0000000..a6b3ff8
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diff --git a/Makefile b/Makefile
index f40f162..086bb2c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 default: bfilter.c bfilter.h
-	$(CC) -g -Wall -Wextra -std=gnu99 -Wpointer-arith -Wmissing-prototypes -lfnv -lm -L. -O0 ./bfilter.c -o test -Wl,-rpath,/home/wes/bfilter;
+	$(CC) -g -Wall -Wextra -std=gnu99 -Wpointer-arith -Wmissing-prototypes -lfnv -lm -L. -O3 ./bfilter.c -o test -Wl,-rpath,/home/wes/bfilter;
 
 lib: bfilter.c bfilter.h
-	$(CC) -g -DLIB -c -fpic -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 -lfnv -lm -L. -O0 ./bfilter.c -Wl,-rpath,/home/wes/bfilter;
+	$(CC) -g -DLIB -c -fpic -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 -lfnv -lm -L. -O3 ./bfilter.c -Wl,-rpath,/home/wes/bfilter;
 	$(CC) -shared -o bfilter.so bfilter.o;
diff --git a/bfilter.c b/bfilter.c
index 54af651..bab533b 100644
--- a/bfilter.c
+++ b/bfilter.c
@@ -186,6 +186,7 @@ bfilter_get(bit_array_t *filter,
 
 int
 release_bfilter(bit_array_t *filter) {
+  printf("Releasing bloom filter\n");
   free(filter->arr);
   free(filter);
   return 0;
diff --git a/bfilter.o b/bfilter.o
index 954c271..8e305aa 100644
Binary files a/bfilter.o and b/bfilter.o differ
diff --git a/bfilter.py b/bfilter.py
index 8ca0525..666a29a 100755
--- a/bfilter.py
+++ b/bfilter.py
@@ -44,6 +44,8 @@ int bfilter_set(bit_array_t *, const char*, int);
 int  bfilter_get(bit_array_t *, const char*, int);
 
 int getbit(bit_array_t *, int);
+
+int release_bfilter(bit_array_t *);
 """)
 
 class BloomFilter:
@@ -51,7 +53,7 @@ class BloomFilter:
         self.m = m
         self.k = k
 
-        self.bitset = lib.empty_bfilter(m)
+        self.bitset = ffi.gc(lib.empty_bfilter(m), lib.release_bfilter)
 
     def add(self, key):
         lib.bfilter_set(self.bitset, key.encode("UTF-8"), self.k)
diff --git a/bfilter.so b/bfilter.so
index 07bdd86..97f9910 100755
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