--- src/types.c
+++ src/types.c
@@ -31,6 +31,8 @@
 #include <ffi.h>
 #include <ffi_common.h>
 
+#include <complex.h>
+
 /* Type definitions */
 
 #define FFI_TYPEDEF(name, type, id, maybe_const)\
@@ -45,17 +47,17 @@
   id, NULL					\
 }
 
-#define FFI_COMPLEX_TYPEDEF(name, type, maybe_const)	\
+#define FFI_COMPLEX_TYPEDEF(name, complex_type, maybe_const)	\
 static ffi_type *ffi_elements_complex_##name [2] = {	\
 	(ffi_type *)(&ffi_type_##name), NULL		\
 };							\
 struct struct_align_complex_##name {			\
   char c;						\
-  _Complex type x;					\
+  complex_type x;					\
 };							\
 FFI_EXTERN						\
 maybe_const ffi_type ffi_type_complex_##name = {	\
-  sizeof(_Complex type),				\
+  sizeof(complex_type),				\
   offsetof(struct struct_align_complex_##name, x),	\
   FFI_TYPE_COMPLEX,					\
   (ffi_type **)ffi_elements_complex_##name		\
@@ -99,10 +101,20 @@
 FFI_TYPEDEF(longdouble, long double, FFI_TYPE_LONGDOUBLE, FFI_LDBL_CONST);
 #endif
 
+#ifdef _MSC_VER
+#  define FLOAT_COMPLEX _C_float_complex
+#  define DOUBLE_COMPLEX _C_double_complex
+#  define LDOUBLE_COMPLEX _C_ldouble_complex
+#else
+#  define FLOAT_COMPLEX float _Complex
+#  define DOUBLE_COMPLEX double _Complex
+#  define LDOUBLE_COMPLEX long double _Complex
+#endif
+
 #ifdef FFI_TARGET_HAS_COMPLEX_TYPE
-FFI_COMPLEX_TYPEDEF(float, float, const);
-FFI_COMPLEX_TYPEDEF(double, double, const);
+FFI_COMPLEX_TYPEDEF(float, FLOAT_COMPLEX, const);
+FFI_COMPLEX_TYPEDEF(double, DOUBLE_COMPLEX, const);
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-FFI_COMPLEX_TYPEDEF(longdouble, long double, FFI_LDBL_CONST);
+FFI_COMPLEX_TYPEDEF(longdouble, LDOUBLE_COMPLEX, FFI_LDBL_CONST);
 #endif
 #endif