diff --git a/include/sysapp/launch.h b/include/sysapp/launch.h
index f281771..4d5ec74 100644
--- a/include/sysapp/launch.h
+++ b/include/sysapp/launch.h
@@ -12,7 +12,7 @@ extern "C" {
 #endif
 
 void
-SYSRelaunchTitle(uint32_t argc, 
+SYSRelaunchTitle(uint32_t argc,
                  char *pa_Argv[]);
 
 void
diff --git a/src/crt/newlib.c b/src/crt/newlib.c
index 6ebeeb3..6ad42db 100644
--- a/src/crt/newlib.c
+++ b/src/crt/newlib.c
@@ -15,8 +15,8 @@
 
 static OSMutex sMallocMutex;
 static uint8_t *sHeapBase = NULL;
-static uint32_t sHeapMaxSize = NULL;
-static volatile uint32_t sHeapSize = NULL;
+static uint32_t sHeapMaxSize = 0;
+static volatile uint32_t sHeapSize = 0;
 
 void
 __init_wut_newlibc();