diff --git a/examples/foc/foc_cfg.h b/examples/foc/foc_cfg.h
index c9ef8dc1a..827d996f2 100644
--- a/examples/foc/foc_cfg.h
+++ b/examples/foc/foc_cfg.h
@@ -203,8 +203,10 @@
 
 /* Open-loop to observer angle merge factor */
 
-#if CONFIG_EXAMPLES_FOC_ANGOBS_MERGE_RATIO > 0
-#  define ANGLE_MERGE_FACTOR (CONFIG_EXAMPLES_FOC_ANGOBS_MERGE_RATIO / 100.0f)
+#ifdef CONFIG_EXAMPLES_FOC_SENSORLESS
+#  if CONFIG_EXAMPLES_FOC_ANGOBS_MERGE_RATIO > 0
+#    define ANGLE_MERGE_FACTOR (CONFIG_EXAMPLES_FOC_ANGOBS_MERGE_RATIO / 100.0f)
+#  endif
 #endif
 
 /****************************************************************************