diff --git a/spec/std/process_spec.cr b/spec/std/process_spec.cr
index 0e8363856e24..d5feae488d69 100644
--- a/spec/std/process_spec.cr
+++ b/spec/std/process_spec.cr
@@ -154,8 +154,9 @@ describe Process do
 
   it "gets the pgid of a process id" do
     process = fork { loop { } }
-    Process.getpgid(process.pid).should be_a(Int32)
+    Process.pgid(process.pid).should be_a(Int32)
     process.kill(Signal::KILL)
+    Process.pgid.should eq(Process.pgid(Process.pid))
   end
 
   it "can link processes together" do
diff --git a/src/process/process.cr b/src/process/process.cr
index 2ec12cdf8c29..547a88532889 100644
--- a/src/process/process.cr
+++ b/src/process/process.cr
@@ -13,7 +13,11 @@ class Process
     LibC.getpid
   end
 
-  def self.getpgid(pid : Int32) : LibC::PidT
+  def self.pgid : LibC::PidT
+    pgid(0)
+  end
+
+  def self.pgid(pid : Int32) : LibC::PidT
     ret = LibC.getpgid(pid)
     raise Errno.new(ret) if ret < 0
     ret