diff --git a/spine-c/spine-c/src/spine/SkeletonBinary.c b/spine-c/spine-c/src/spine/SkeletonBinary.c
index 7c7543755..be2dc71c4 100644
--- a/spine-c/spine-c/src/spine/SkeletonBinary.c
+++ b/spine-c/spine-c/src/spine/SkeletonBinary.c
@@ -36,7 +36,7 @@
 #include "kvec.h"
 
 typedef struct {
-	const unsigned char* cursor;
+	const unsigned char* cursor; 
 	const unsigned char* end;
 } _dataInput;
 
@@ -373,7 +373,7 @@ static spAnimation* _spSkeletonBinary_readAnimation (spSkeletonBinary* self, con
 		for (frameIndex = 0; frameIndex < frameCount; ++frameIndex) {
 			float time = readFloat(input);
 			float mix = readFloat(input);
-			char bendDirection = readSByte(input);
+			signed char bendDirection = readSByte(input);
 			spIkConstraintTimeline_setFrame(timeline, frameIndex, time, mix, bendDirection);
 			if (frameIndex < frameCount - 1) readCurve(input, SUPER(timeline), frameIndex);
 		}