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-rw-r--r--ext/ffi/php_ffi.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/ffi/php_ffi.h b/ext/ffi/php_ffi.h
index 913d63ecd0..1b51a832c9 100644
--- a/ext/ffi/php_ffi.h
+++ b/ext/ffi/php_ffi.h
@@ -200,7 +200,7 @@ typedef struct _zend_ffi_val {
uint64_t u64;
int64_t i64;
zend_ffi_double d;
- char ch;
+ signed char ch;
struct {
const char *str;
size_t len;