diff --git a/libsanitizer/interception/interception.h b/libsanitizer/interception/interception.h
index 0580d97edda6..3cb6b446638e 100644
--- a/libsanitizer/interception/interception.h
+++ b/libsanitizer/interception/interception.h
@@ -37,7 +37,7 @@
 #endif
 
 #define SIZE_T __sanitizer::usize
-#define SSIZE_T __sanitizer::sptr
+#define SSIZE_T __sanitizer::ssize
 typedef __sanitizer::sptr    PTRDIFF_T;
 typedef __sanitizer::s64     INTMAX_T;
 typedef __sanitizer::u64     UINTMAX_T;
diff --git a/libsanitizer/sanitizer_common/sanitizer_internal_defs.h b/libsanitizer/sanitizer_common/sanitizer_internal_defs.h
index 9208b12552ff..fff60c96f632 100644
--- a/libsanitizer/sanitizer_common/sanitizer_internal_defs.h
+++ b/libsanitizer/sanitizer_common/sanitizer_internal_defs.h
@@ -203,6 +203,12 @@ typedef __SIZE_TYPE__ usize;
 typedef uptr usize;
 #endif
 
+#if defined(__s390__) && !defined(__s390x__)
+typedef long ssize;
+#else
+typedef sptr ssize;
+#endif
+
 typedef u64 tid_t;
 
 // ----------- ATTENTION -------------