diff --git a/apps/plugins/pdbox/PDa/intern/intern_setup.c b/apps/plugins/pdbox/PDa/intern/intern_setup.c
index 95d29b8cf5..d89cf286bb 100644
--- a/apps/plugins/pdbox/PDa/intern/intern_setup.c
+++ b/apps/plugins/pdbox/PDa/intern/intern_setup.c
@@ -1,3 +1,5 @@
+#include "m_pd.h"
+
 #ifndef ROCKBOX
 #include <stdio.h>
 #endif
diff --git a/apps/plugins/pdbox/PDa/src/d_imayer_fft.c b/apps/plugins/pdbox/PDa/src/d_imayer_fft.c
index 3e07eac49e..a78b9370f4 100644
--- a/apps/plugins/pdbox/PDa/src/d_imayer_fft.c
+++ b/apps/plugins/pdbox/PDa/src/d_imayer_fft.c
@@ -9,6 +9,7 @@
 ** Computation: 2 *, 1 + per value.
 */
 
+#include "m_pd.h"
 
 #include "m_fixed.h"
 
diff --git a/apps/plugins/pdbox/PDa/src/m_pd.h b/apps/plugins/pdbox/PDa/src/m_pd.h
index 49c0af9731..3dc4548781 100644
--- a/apps/plugins/pdbox/PDa/src/m_pd.h
+++ b/apps/plugins/pdbox/PDa/src/m_pd.h
@@ -12,6 +12,13 @@ extern "C" {
 #define PD_MAJOR_VERSION 0  /* ... use these two instead. */
 #define PD_MINOR_VERSION 37   
 
+#ifdef ROCKBOX
+#define FIXEDPOINT 
+#define STATIC 
+#define PD 
+#define USEAPI_ROCKBOX
+#endif
+
 /* old name for "MSW" flag -- we have to take it for the sake of many old
 "nmakefiles" for externs, which will define NT and not MSW */
 #if defined(NT) && !defined(MSW)
diff --git a/apps/plugins/pdbox/PDa/src/makecostab.c b/apps/plugins/pdbox/PDa/src/makecostab.c
index 6b436b6e57..a57a8e8d1c 100644
--- a/apps/plugins/pdbox/PDa/src/makecostab.c
+++ b/apps/plugins/pdbox/PDa/src/makecostab.c
@@ -1,3 +1,4 @@
+#include "m_pd.h"
 #include "m_fixed.h"
 #include <math.h>
 
diff --git a/apps/plugins/pdbox/pdbox.make b/apps/plugins/pdbox/pdbox.make
index 7031717d38..7abb31f3bb 100644
--- a/apps/plugins/pdbox/pdbox.make
+++ b/apps/plugins/pdbox/pdbox.make
@@ -20,8 +20,7 @@ OTHER_SRC += $(PDBOX_SRC)
 
 $(PDBOXBUILDDIR)/pdbox.rock: $(PDBOX_OBJ) $(MPEG_OBJ) $(CODECDIR)/libtlsf.a
 
-PDBOXFLAGS = $(PLUGINFLAGS) \
-             -DFIXEDPOINT -DSTATIC -DPD -DUSEAPI_ROCKBOX 
+PDBOXFLAGS = $(PLUGINFLAGS)
 
 # Compile PDBox with extra flags (adapted from ZXBox)
 $(PDBOXBUILDDIR)/%.o: $(PDBOXSRCDIR)/%.c $(PDBOXSRCDIR)/pdbox.make