diff --git a/examples/X_NUCLEO_IKS02A1_Audio_Button/X_NUCLEO_IKS02A1_Audio_Button.ino b/examples/X_NUCLEO_IKS02A1_Audio_Button/X_NUCLEO_IKS02A1_Audio_Button.ino
index 9f4fe5c..eb16efb 100644
--- a/examples/X_NUCLEO_IKS02A1_Audio_Button/X_NUCLEO_IKS02A1_Audio_Button.ino
+++ b/examples/X_NUCLEO_IKS02A1_Audio_Button/X_NUCLEO_IKS02A1_Audio_Button.ino
@@ -6,7 +6,6 @@
 #endif
 
 #include "Arduino.h"
-#include "app_config.h"
 #include "PDM.h"
 #include "pdm2pcm.h"
 #include "WaveEncoder.h"
diff --git a/examples/X_NUCLEO_IKS02A1_Audio_Button/app_config.h b/examples/X_NUCLEO_IKS02A1_Audio_Button/app_config.h
deleted file mode 100644
index b25632b..0000000
--- a/examples/X_NUCLEO_IKS02A1_Audio_Button/app_config.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef __APP_CONFIG_H__
-#define __APP_CONFIG_H__
-
-/* Override the settings inside the library of the number of milliseconds per interrupt*/
-#ifndef N_MS_PER_INTERRUPT
-
-#define N_MS_PER_INTERRUPT              (100)
-
-#endif
-
-#endif /* __APP_CONFIG_H__ */
diff --git a/examples/X_NUCLEO_IKS02A1_Audio_Button/app_config_custom.h b/examples/X_NUCLEO_IKS02A1_Audio_Button/app_config_custom.h
new file mode 100644
index 0000000..3c88df6
--- /dev/null
+++ b/examples/X_NUCLEO_IKS02A1_Audio_Button/app_config_custom.h
@@ -0,0 +1,9 @@
+#ifndef __APP_CONFIG_CUSTOM_H__
+#define __APP_CONFIG_CUSTOM_H__
+
+/* Override the settings inside the library of the number of milliseconds per interrupt*/
+#ifndef N_MS_PER_INTERRUPT
+  #define N_MS_PER_INTERRUPT              (100)
+#endif /* N_MS_PER_INTERRUPT */
+
+#endif /* __APP_CONFIG_CUSTOM_H__ */
diff --git a/library.properties b/library.properties
index 751bc35..85e3df2 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=STM32duino FP_Examples
-version=1.5.0
+version=1.5.1
 author=STMicroelectronics
 maintainer=stm32duino
 sentence=Provides several Function Packs that combine the usage of several X-NUCLEO boards