diff --git a/tools/gdb_mutex_contention.pl b/tools/gdb_mutex_contention.pl
index bb6c1647416..d58e28b9909 100755
--- a/tools/gdb_mutex_contention.pl
+++ b/tools/gdb_mutex_contention.pl
@@ -60,6 +60,7 @@ ()
 
   # Grab the binary from the running pid
   my $binary = `ps --pid $pid -o command -h`;
+  $binary = (split(' ', $binary))[0];
   chomp $binary;
 
   # Print out what we are going to run gdb on