diff --git a/lib/chip/blisp_chip_bl60x.c b/lib/chip/blisp_chip_bl60x.c
index 08ba99e..e8ae033 100644
--- a/lib/chip/blisp_chip_bl60x.c
+++ b/lib/chip/blisp_chip_bl60x.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-#include <malloc.h>
+#include <stdlib.h>
 #include <string.h>
 #include "../../data/bl60x_eflash_loader.h"
 #include "blisp.h"
diff --git a/lib/chip/blisp_chip_bl70x.c b/lib/chip/blisp_chip_bl70x.c
index 9af7185..a380720 100644
--- a/lib/chip/blisp_chip_bl70x.c
+++ b/lib/chip/blisp_chip_bl70x.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-#include <malloc.h>
+#include <stdlib.h>
 #include <string.h>
 #include "../../data/bl70x_eflash_loader.h"
 #include "blisp.h"
diff --git a/tools/blisp/src/common.c b/tools/blisp/src/common.c
index f989297..2aeecba 100644
--- a/tools/blisp/src/common.c
+++ b/tools/blisp/src/common.c
@@ -3,7 +3,7 @@
 #include <argtable3.h>
 #include <blisp.h>
 #include <inttypes.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/tools/blisp/src/util.c b/tools/blisp/src/util.c
index 140f9ba..eab67ac 100644
--- a/tools/blisp/src/util.c
+++ b/tools/blisp/src/util.c
@@ -9,6 +9,8 @@
 // These are not thread safe, but it doesn't place the responsibility
 // to free an allocated buffer on the caller.nn
 
+#include <stdlib.h>
+
 static void util_get_executable_path(char* buffer_out, uint32_t max_size) {
   assert(max_size >= PATH_MAX);  // n.b. 1024 on MacOS. 4K on most Linux.
 
diff --git a/tools/blisp/src/util.h b/tools/blisp/src/util.h
index 7c53526..f766fa9 100644
--- a/tools/blisp/src/util.h
+++ b/tools/blisp/src/util.h
@@ -14,10 +14,7 @@ typedef SSIZE_T ssize_t;
 #elif defined(__APPLE__)
 #include <sys/syslimits.h>
 #include <assert.h>
-#endif
-
-#ifdef __linux__
-#include <linux/limits.h>
+#include <sys/types.h>
 #endif
 
 ssize_t util_get_binary_folder(char* buffer, uint32_t buffer_size);