diff --git a/src/suunto_common2.c b/src/suunto_common2.c
index 28b3858..2bfbd11 100644
--- a/src/suunto_common2.c
+++ b/src/suunto_common2.c
@@ -268,7 +268,11 @@ suunto_common2_device_foreach (dc_device_t *abstract, dc_dive_callback_t callbac
 	dc_event_devinfo_t devinfo;
 	devinfo.model = device->version[0];
 	devinfo.firmware = array_uint24_be (device->version + 1);
-	devinfo.serial = array_uint32_be (serial);
+	devinfo.serial = 0;
+	for (unsigned int i = 0; i < 4; ++i) {
+		devinfo.serial *= 100;
+		devinfo.serial += serial[i];
+	}
 	device_event_emit (abstract, DC_EVENT_DEVINFO, &devinfo);
 
 	// Read the header bytes.
diff --git a/src/suunto_eon.c b/src/suunto_eon.c
index fb61b53..9354c57 100644
--- a/src/suunto_eon.c
+++ b/src/suunto_eon.c
@@ -227,7 +227,11 @@ suunto_eon_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, v
 	dc_event_devinfo_t devinfo;
 	devinfo.model = 0;
 	devinfo.firmware = 0;
-	devinfo.serial = array_uint24_be (data + 244);
+	devinfo.serial = 0;
+	for (unsigned int i = 0; i < 3; ++i) {
+		devinfo.serial *= 100;
+		devinfo.serial += bcd2dec (data[244 + i]);
+	}
 	device_event_emit (abstract, DC_EVENT_DEVINFO, &devinfo);
 
 	rc = suunto_eon_extract_dives (abstract,
diff --git a/src/suunto_solution.c b/src/suunto_solution.c
index 9af41b2..625eb3c 100644
--- a/src/suunto_solution.c
+++ b/src/suunto_solution.c
@@ -279,7 +279,11 @@ suunto_solution_device_foreach (dc_device_t *abstract, dc_dive_callback_t callba
 	dc_event_devinfo_t devinfo;
 	devinfo.model = 0;
 	devinfo.firmware = 0;
-	devinfo.serial = array_uint24_be (data + 0x1D);
+	devinfo.serial = 0;
+	for (unsigned int i = 0; i < 3; ++i) {
+		devinfo.serial *= 100;
+		devinfo.serial += bcd2dec (data[0x1D + i]);
+	}
 	device_event_emit (abstract, DC_EVENT_DEVINFO, &devinfo);
 
 	rc = suunto_solution_extract_dives (abstract,
diff --git a/src/suunto_vyper.c b/src/suunto_vyper.c
index f644883..84bc24c 100644
--- a/src/suunto_vyper.c
+++ b/src/suunto_vyper.c
@@ -527,7 +527,11 @@ suunto_vyper_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback,
 	dc_event_devinfo_t devinfo;
 	devinfo.model = header[hoffset + 0];
 	devinfo.firmware = header[hoffset + 1];
-	devinfo.serial = array_uint32_be (header + hoffset + 2);
+	devinfo.serial = 0;
+	for (unsigned int i = 0; i < 4; ++i) {
+		devinfo.serial *= 100;
+		devinfo.serial += header[hoffset + 2 + i];
+	}
 	device_event_emit (abstract, DC_EVENT_DEVINFO, &devinfo);
 
 	// Allocate a memory buffer.