diff --git a/gb_math.h b/gb_math.h
index 075dd28..d4ef43b 100644
--- a/gb_math.h
+++ b/gb_math.h
@@ -80,7 +80,7 @@ typedef union gbVec3 {
 	struct { float r, g, b; };
 
 	gbVec2 xy;
-	float e[2];
+	float e[3];
 } gbVec3;
 
 typedef union gbVec4 {