diff --git a/win32/include/tcc/tcc_libm.h b/win32/include/tcc/tcc_libm.h
index 58b502e5..ba26ee00 100644
--- a/win32/include/tcc/tcc_libm.h
+++ b/win32/include/tcc/tcc_libm.h
@@ -2,6 +2,7 @@
 #define _TCC_LIBM_H_
 
 #include "../math.h"
+#include "../stdint.h"
 
 /* TCC uses 8 bytes for double and long double, so effectively the l variants
  * are never used. For now, they just run the normal (double) variant.