diff --git a/pmc.c b/pmc.c
index 4e6043b..e3cd6f3 100644
--- a/pmc.c
+++ b/pmc.c
@@ -38,6 +38,7 @@
 static struct pmc *pmc;
 
 #define IFMT "\n\t\t"
+#define P41 ((double)(1ULL << 41))
 
 static char *text2str(struct PTPText *text)
 {
diff --git a/pmc_common.c b/pmc_common.c
index 3aab4b9..92daf20 100644
--- a/pmc_common.c
+++ b/pmc_common.c
@@ -27,6 +27,11 @@
 #include "util.h"
 #include "pmc_common.h"
 
+#define BAD_ACTION   -1
+#define BAD_ID       -1
+#define AMBIGUOUS_ID -2
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
 /*
    Field                  Len  Type
   --------------------------------------------------------
diff --git a/pmc_common.h b/pmc_common.h
index b1fdcd6..9fa72de 100644
--- a/pmc_common.h
+++ b/pmc_common.h
@@ -25,12 +25,6 @@
 #include "msg.h"
 #include "transport.h"
 
-#define BAD_ACTION   -1
-#define BAD_ID       -1
-#define AMBIGUOUS_ID -2
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#define P41 ((double)(1ULL << 41))
-
 struct pmc;
 
 struct pmc *pmc_create(struct config *cfg, enum transport_type transport_type,