diff --git a/qcmsint.h b/qcmsint.h
index efe7b15..dd2edf7 100644
--- a/qcmsint.h
+++ b/qcmsint.h
@@ -67,12 +67,7 @@
 
 struct curveType {
 	uint32_t count;
-/* Using the C99 flexible array member syntax with IBM compiler */
-#if defined (__IBMC__) || defined (__IBMCPP__)
 	uInt16Number data[];
-#else
-	uInt16Number data[0];
-#endif
 };
 
 struct lutType {