diff --git a/src/macros.h b/src/macros.h
index 41541304..6af1c340 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -40,7 +40,11 @@
 /** Number of outer loop iterations for offload code
  */
 
-#define BML_OFFLOAD_CHUNKS (defined(INTEL_SDK) || defined(CRAY_SDK) || defined(__IBMC__) || defined(__ibmxl__))
+#if (defined(INTEL_SDK) || defined(CRAY_SDK) || defined(__IBMC__) || defined(__ibmxl__))
+#define BML_OFFLOAD_CHUNKS 1
+#else
+#define BML_OFFLOAD_CHUNKS 0
+#endif
 
 #ifdef BML_OFFLOAD_CHUNKS
 #ifndef BML_OFFLOAD_NUM_CHUNKS