diff --git a/src/renderer_gl.cpp b/src/renderer_gl.cpp
index 7370d0a1..4545f557 100644
--- a/src/renderer_gl.cpp
+++ b/src/renderer_gl.cpp
@@ -3276,8 +3276,11 @@ namespace bgfx { namespace gl
 				*array = '\0';
 				array++;
 				char* end = strchr(array, ']');
-				*end = '\0';
-				offset = atoi(array);
+				if (NULL != end)
+				{ // Some devices (Amazon Fire) might not return terminating brace.
+					*end = '\0';
+					offset = atoi(array);
+				}
 			}
 
 			switch (gltype)