diff --git a/src/api.c b/src/api.c
index 3fca106..3738d2c 100644
--- a/src/api.c
+++ b/src/api.c
@@ -57,17 +57,11 @@ static void open_aux(paw_Env *P, void *arg)
 {
     paw_unused(arg);
     pawG_init(P);
-printf("c\n");
     pawC_init(P);
-printf("d\n");
     pawS_init(P);
-printf("d\n");
     pawP_init(P);
-printf("e\n");
     pawR_init(P);
-printf("f\n");
     pawL_init(P);
-printf("g\n");
     CHECK_GC(P);
 }
 
@@ -80,15 +74,14 @@ paw_Env *paw_open(paw_Alloc alloc, void *ud)
         .alloc = alloc,
         .ud = ud,
     };
-printf("a\n");
+
     // TODO: let user pass in options. These options should work for programs that
     //       don't use a huge amount of memory.
-    const size_t heap_size =  8388608 * 8; // 64 MiB
+    const size_t heap_size =  8388608 * 2;
     if (pawZ_init(P, heap_size)) {
         alloc(ud, P, sizeof(*P), 0);
         return NULL;
     }
-printf("b\n");
     if (pawC_try(P, open_aux, NULL)) {
         paw_close(P);
         return NULL;