diff --git a/extensions/spine/SkeletonRenderer.cpp b/extensions/spine/SkeletonRenderer.cpp
index 292a16edca..bc594ad145 100644
--- a/extensions/spine/SkeletonRenderer.cpp
+++ b/extensions/spine/SkeletonRenderer.cpp
@@ -188,7 +188,7 @@ void SkeletonRenderer::initWithJsonFile (const std::string& skeletonDataFile, At
 	SkeletonJson json(_attachmentLoader);
 	json.setScale(scale);
 	SkeletonData* skeletonData = json.readSkeletonDataFile(skeletonDataFile.c_str());
-	CCASSERT(skeletonData, !json.getError().isEmpty() ? json.getError().buffer() : "Error reading skeleton data.");
+	CCASSERT(skeletonData, (!json.getError().isEmpty() ? json.getError().buffer() : "Error reading skeleton data."));
 
 	_ownsSkeleton = true;
 	setSkeletonData(skeletonData, true);
@@ -205,7 +205,7 @@ void SkeletonRenderer::initWithJsonFile (const std::string& skeletonDataFile, co
 	SkeletonJson json(_attachmentLoader);
 	json.setScale(scale);
 	SkeletonData* skeletonData = json.readSkeletonDataFile(skeletonDataFile.c_str());
-	CCASSERT(skeletonData, !json.getError().isEmpty() ? json.getError().buffer() : "Error reading skeleton data.");
+    CCASSERT(skeletonData, (!json.getError().isEmpty() ? json.getError().buffer() : "Error reading skeleton data."));
 
 	_ownsSkeleton = true;
 	_ownsAtlas = true;
@@ -221,7 +221,7 @@ void SkeletonRenderer::initWithBinaryFile (const std::string& skeletonDataFile,
 	SkeletonBinary binary(_attachmentLoader);
 	binary.setScale(scale);
 	SkeletonData* skeletonData = binary.readSkeletonDataFile(skeletonDataFile.c_str());
-	CCASSERT(skeletonData, !binary.getError().isEmpty() ? binary.getError().buffer() : "Error reading skeleton data.");
+	CCASSERT(skeletonData, (!binary.getError().isEmpty() ? binary.getError().buffer() : "Error reading skeleton data."));
 	_ownsSkeleton = true;
 	setSkeletonData(skeletonData, true);
 
@@ -237,7 +237,7 @@ void SkeletonRenderer::initWithBinaryFile (const std::string& skeletonDataFile,
 	SkeletonBinary binary(_attachmentLoader);
 	binary.setScale(scale);
 	SkeletonData* skeletonData = binary.readSkeletonDataFile(skeletonDataFile.c_str());
-	CCASSERT(skeletonData, !binary.getError().isEmpty() ? binary.getError().buffer() : "Error reading skeleton data.");
+	CCASSERT(skeletonData, (!binary.getError().isEmpty() ? binary.getError().buffer() : "Error reading skeleton data."));
 	_ownsSkeleton = true;
 	_ownsAtlas = true;
 	setSkeletonData(skeletonData, true);
diff --git a/tests/cpp-tests/Classes/SpineTest/SpineTest.cpp b/tests/cpp-tests/Classes/SpineTest/SpineTest.cpp
index 5c4a03788b..c3db5b490b 100644
--- a/tests/cpp-tests/Classes/SpineTest/SpineTest.cpp
+++ b/tests/cpp-tests/Classes/SpineTest/SpineTest.cpp
@@ -150,7 +150,7 @@ bool BatchingExample::init () {
     SkeletonJson* json = new (__FILE__, __LINE__) SkeletonJson(_attachmentLoader);
     json->setScale(0.6f); // Resizes skeleton data to 60% of the size it was in Spine.
     _skeletonData = json->readSkeletonDataFile("spineboy-pro.json");
-    CCASSERT(_skeletonData, json->getError().isEmpty() ? json->getError().buffer() : "Error reading skeleton data file.");
+    CCASSERT(_skeletonData, (json->getError().isEmpty() ? json->getError().buffer() : "Error reading skeleton data file."));
     delete json;
 
     // Setup mix times.