diff --git a/src/Makefile.am b/src/Makefile.am
index ece18a65db..c8fad28fbc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1037,8 +1037,13 @@ libexec_PROGRAMS += libvirt_parthelper
 
 libvirt_parthelper_SOURCES = $(STORAGE_HELPER_DISK_SOURCES)
 libvirt_parthelper_LDFLAGS = $(WARN_LDFLAGS) $(COVERAGE_LDFLAGS)
-libvirt_parthelper_LDADD = $(LIBPARTED_LIBS) ../gnulib/lib/libgnu.la
-libvirt_parthelper_CFLAGS = $(LIBPARTED_CFLAGS)
+libvirt_parthelper_LDADD =		\
+		$(LIBPARTED_LIBS)	\
+		$(DEVMAPPER_LIBS)	\
+		libvirt_util.la		\
+		../gnulib/lib/libgnu.la
+
+libvirt_parthelper_CFLAGS = $(LIBPARTED_CFLAGS) $(DEVMAPPER_CFLAGS)
 endif
 endif
 EXTRA_DIST += $(STORAGE_HELPER_DISK_SOURCES)
diff --git a/src/storage/parthelper.c b/src/storage/parthelper.c
index ca74456b76..2a70250115 100644
--- a/src/storage/parthelper.c
+++ b/src/storage/parthelper.c
@@ -35,7 +35,12 @@
 #include <parted/parted.h>
 #include <stdio.h>
 #include <string.h>
+#include <libdevmapper.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 
+#include "util.h"
 #include "c-ctype.h"
 
 /* we don't need to include the full internal.h just for this */
@@ -52,6 +57,18 @@ enum diskCommand {
     DISK_GEOMETRY
 };
 
+static int
+is_dm_device(const char *devname)
+{
+    struct stat buf;
+
+    if (devname && !stat(devname, &buf) && dm_is_dm_major(major(buf.st_rdev))) {
+        return 1;
+    }
+
+    return 0;
+}
+
 int main(int argc, char **argv)
 {
     PedDevice *dev;
@@ -59,6 +76,7 @@ int main(int argc, char **argv)
     PedPartition *part;
     int cmd = DISK_LAYOUT;
     const char *path;
+    char *canonical_path;
     const char *partsep;
 
     if (argc == 3 && STREQ(argv[2], "-g")) {
@@ -69,7 +87,20 @@ int main(int argc, char **argv)
     }
 
     path = argv[1];
-    partsep = *path && c_isdigit(path[strlen(path)-1]) ? "p" : "";
+    if (is_dm_device(path)) {
+        partsep = "p";
+        canonical_path = strdup(path);
+        if (canonical_path == NULL) {
+            return 2;
+        }
+    } else {
+        if (virFileResolveLink(path, &canonical_path) != 0) {
+            return 2;
+        }
+
+        partsep = *canonical_path &&
+            c_isdigit(canonical_path[strlen(canonical_path)-1]) ? "p" : "";
+    }
 
     if ((dev = ped_device_get(path)) == NULL) {
         fprintf(stderr, "unable to access device %s\n", path);
@@ -125,7 +156,7 @@ int main(int argc, char **argv)
          */
         if (part->num != -1) {
             printf("%s%s%d%c%s%c%s%c%llu%c%llu%c%llu%c",
-                   path, partsep,
+                   canonical_path, partsep,
                    part->num, '\0',
                    type, '\0',
                    content, '\0',