diff --git a/apps/plugins/pdbox/pdbox.h b/apps/plugins/pdbox/pdbox.h
index 2ee32a0dc8..cf46e4835a 100644
--- a/apps/plugins/pdbox/pdbox.h
+++ b/apps/plugins/pdbox/pdbox.h
@@ -22,11 +22,8 @@
 #ifndef PDBOX_H
 #define PDBOX_H
 
-
-#if 1
 /* Use TLSF. */
 #include "codecs/lib/tlsf/src/tlsf.h"
-#endif
 
 /* Pure Data */
 #include "PDa/src/m_pd.h"
@@ -43,7 +40,17 @@
 #define calloc(elements, elem_size) tlsf_calloc(elements, elem_size)
 
 /* Audio declarations. */
-#define PD_SAMPLERATE 22050
+#ifdef SIMULATOR
+  #define PD_SAMPLERATE 44100
+#elif (HW_SAMPR_CAPS & SAMPR_CAP_22)
+  #define PD_SAMPLERATE 22050
+#elif (HW_SAMPR_CAPS & SAMPR_CAP_32)
+  #define PD_SAMPLERATE 32000
+#elif (HW_SAMPR_CAPS & SAMPR_CAP_44)
+  #define PD_SAMPLERATE 44100
+#else
+  #error No sufficient sample rate available!
+#endif
 #define PD_SAMPLES_PER_HZ ((PD_SAMPLERATE / HZ) + \
                            (PD_SAMPLERATE % HZ > 0 ? 1 : 0))
 #define PD_OUT_CHANNELS 2