diff --git a/cpu/cc253x/dev/p2-intr.c b/cpu/cc253x/dev/p2-intr.c
index ea8097d03..f1ab0bdbc 100644
--- a/cpu/cc253x/dev/p2-intr.c
+++ b/cpu/cc253x/dev/p2-intr.c
@@ -34,7 +34,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 static struct cc253x_p2_handler *handlers = NULL;
 
 void
-cc253x_p2_int(void) __interrupt(P2INT_VECTOR)
+port_2_isr(void) __interrupt(P2INT_VECTOR)
 {
   struct cc253x_p2_handler *h;
   uint8_t handled = 0;
diff --git a/cpu/cc253x/dev/p2-intr.h b/cpu/cc253x/dev/p2-intr.h
index 4518243b4..f70d5d036 100644
--- a/cpu/cc253x/dev/p2-intr.h
+++ b/cpu/cc253x/dev/p2-intr.h
@@ -48,7 +48,7 @@ void cc253x_p2_unregister_handler(struct cc253x_p2_handler *h);
 /* When the ISR is not needed, hide its prototype from the module containing
  * main() to prevent linking it */
 #if PORT_2_ISR_ENABLED
-void cc253x_p2_int(void) __interrupt(P2INT_VECTOR);
+void port_2_isr(void) __interrupt(P2INT_VECTOR);
 #endif
 
 #define cc253x_p2_irq_disable(flag) do { flag = IEN2 & 0x2; IEN2 &= ~0x2; } while(0)