diff --git a/cores/esp8266/libc_replacements.c b/cores/esp8266/libc_replacements.c
index f7d1420e3..948bc7e03 100644
--- a/cores/esp8266/libc_replacements.c
+++ b/cores/esp8266/libc_replacements.c
@@ -39,6 +39,16 @@
 #include "user_interface.h"
 #include "debug.h"
 
+extern void *__real_pvPortMalloc(size_t xWantedSize, const char* file, int line);
+extern void *__wrap_pvPortMalloc(size_t xWantedSize, const char* file, int line){
+  return __real_pvPortMalloc(((xWantedSize + 3) & ~((size_t)0x3)), file, line);
+}
+
+extern void *__real_pvPortRealloc(void* ptr, size_t xWantedSize, const char* file, int line);
+extern void *__wrap_pvPortRealloc(void* ptr, size_t xWantedSize, const char* file, int line){
+  return __real_pvPortRealloc(ptr, ((xWantedSize + 3) & ~((size_t)0x3)), file, line);
+}
+
 void* ICACHE_RAM_ATTR malloc(size_t size) {
     size = ((size + 3) & ~((size_t)0x3));
     return os_malloc(size);
diff --git a/platform.txt b/platform.txt
index efeb816e9..1ffbf2818 100644
--- a/platform.txt
+++ b/platform.txt
@@ -27,7 +27,7 @@ compiler.c.flags=-c {compiler.warning_flags} -Os -g -Wpointer-arith -Wno-implici
 compiler.S.cmd=xtensa-lx106-elf-gcc
 compiler.S.flags=-c -g -x assembler-with-cpp -MMD -mlongcalls
 
-compiler.c.elf.flags=-g {compiler.warning_flags} -Os -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static "-L{compiler.sdk.path}/lib" "-L{compiler.sdk.path}/ld" "-T{build.flash_ld}" -Wl,--gc-sections -Wl,-wrap,system_restart_local -Wl,-wrap,register_chipv6_phy
+compiler.c.elf.flags=-g {compiler.warning_flags} -Os -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static "-L{compiler.sdk.path}/lib" "-L{compiler.sdk.path}/ld" "-T{build.flash_ld}" -Wl,--gc-sections -Wl,-wrap,system_restart_local -Wl,-wrap,register_chipv6_phy -Wl,-wrap,pvPortMalloc -Wl,-wrap,pvPortRealloc
 
 compiler.c.elf.cmd=xtensa-lx106-elf-gcc
 compiler.c.elf.libs=-lm -lgcc -lhal -lphy -lpp -lnet80211 -llwip -lwpa -lcrypto -lmain -lwps -laxtls -lsmartconfig -lmesh