diff --git a/payloads/libpayload/include/armv7/arch/types.h b/payloads/libpayload/include/armv7/arch/types.h
index 1bd815bb44..d6f4aa8b66 100644
--- a/payloads/libpayload/include/armv7/arch/types.h
+++ b/payloads/libpayload/include/armv7/arch/types.h
@@ -53,6 +53,9 @@ typedef signed long long s64;
 typedef long time_t;
 typedef long suseconds_t;
 
+typedef unsigned int size_t;
+typedef int ssize_t;
+
 #ifndef NULL
 #define NULL ((void *)0)
 #endif
diff --git a/payloads/libpayload/include/x86/arch/types.h b/payloads/libpayload/include/x86/arch/types.h
index 1bd815bb44..d6f4aa8b66 100644
--- a/payloads/libpayload/include/x86/arch/types.h
+++ b/payloads/libpayload/include/x86/arch/types.h
@@ -53,6 +53,9 @@ typedef signed long long s64;
 typedef long time_t;
 typedef long suseconds_t;
 
+typedef unsigned int size_t;
+typedef int ssize_t;
+
 #ifndef NULL
 #define NULL ((void *)0)
 #endif