diff --git a/src/cpBBTree.c b/src/cpBBTree.c
index 2cef7bc7..c822c75a 100644
--- a/src/cpBBTree.c
+++ b/src/cpBBTree.c
@@ -544,7 +544,7 @@ cpBBTreeAlloc(void)
 	return (cpBBTree *)cpcalloc(1, sizeof(cpBBTree));
 }
 
-static int
+static cpBool
 leafSetEql(void *obj, Node *node)
 {
 	return (obj == node->obj);
diff --git a/src/cpSpaceHash.c b/src/cpSpaceHash.c
index 556c8d38..b5369739 100644
--- a/src/cpSpaceHash.c
+++ b/src/cpSpaceHash.c
@@ -69,7 +69,7 @@ cpHandleRelease(cpHandle *hand, cpArray *pooledHandles)
 	if(hand->retain == 0) cpArrayPush(pooledHandles, hand);
 }
 
-static int handleSetEql(void *obj, cpHandle *hand){return (obj == hand->obj);}
+static cpBool handleSetEql(void *obj, cpHandle *hand){return (obj == hand->obj);}
 
 static void *
 handleSetTrans(void *obj, cpSpaceHash *hash)
@@ -564,7 +564,7 @@ cpSpaceHashCount(cpSpaceHash *hash)
 	return cpHashSetCount(hash->handleSet);
 }
 
-static int
+static cpBool
 cpSpaceHashContains(cpSpaceHash *hash, void *obj, cpHashValue hashid)
 {
 	return cpHashSetFind(hash->handleSet, hashid, obj) != NULL;
diff --git a/src/cpSweep1D.c b/src/cpSweep1D.c
index 94c4e225..42bffbcc 100644
--- a/src/cpSweep1D.c
+++ b/src/cpSweep1D.c
@@ -117,7 +117,7 @@ cpSweep1DEach(cpSweep1D *sweep, cpSpatialIndexIteratorFunc func, void *data)
 	for(int i=0, count=sweep->num; i<count; i++) func(table[i].obj, data);
 }
 
-static int
+static cpBool 
 cpSweep1DContains(cpSweep1D *sweep, void *obj, cpHashValue hashid)
 {
 	TableCell *table = sweep->table;