diff --git a/pyls_mypy/plugin.py b/pyls_mypy/plugin.py
index dd07fc4..c95f62b 100644
--- a/pyls_mypy/plugin.py
+++ b/pyls_mypy/plugin.py
@@ -3,15 +3,15 @@
 from mypy import api as mypy_api
 from pyls import hookimpl
 
-line_pattern = r"(.*):(\d+):(\d+): (\w+): (.*)"
+line_pattern = r"([^:]+):(?:(\d+):)?(?:(\d+):)? (\w+): (.*)"
 
 
 def parse_line(line):
     result = re.match(line_pattern, line)
     if result:
         _, lineno, offset, severity, msg = result.groups()
-        lineno = int(lineno)
-        offset = int(offset)
+        lineno = int(lineno or 1)
+        offset = int(offset or 0)
         errno = 2
         if severity == 'error':
             errno = 1
diff --git a/test/test_plugin.py b/test/test_plugin.py
index 5426cd4..7286593 100644
--- a/test/test_plugin.py
+++ b/test/test_plugin.py
@@ -6,6 +6,8 @@
 """
 
 TEST_LINE = 'main.py:279:8: error: "Request" has no attribute "id"'
+TEST_LINE_WITHOUT_COL = 'main.py:279: error: "Request" has no attribute "id"'
+TEST_LINE_WITHOUT_LINE = 'main.py: error: "Request" has no attribute "id"'
 
 
 def test_plugin():
@@ -19,8 +21,22 @@ def test_plugin():
     assert diag['range']['end'] == {'line': 0, 'character': 1}
 
 
-def test_parse_line():
+def test_parse_full_line():
     diag = plugin.parse_line(TEST_LINE)
     assert diag['message'] == '"Request" has no attribute "id"'
     assert diag['range']['start'] == {'line': 278, 'character': 8}
     assert diag['range']['end'] == {'line': 278, 'character': 9}
+
+
+def test_parse_line_without_col():
+    diag = plugin.parse_line(TEST_LINE_WITHOUT_COL)
+    assert diag['message'] == '"Request" has no attribute "id"'
+    assert diag['range']['start'] == {'line': 278, 'character': 0}
+    assert diag['range']['end'] == {'line': 278, 'character': 1}
+
+
+def test_parse_line_without_line():
+    diag = plugin.parse_line(TEST_LINE_WITHOUT_LINE)
+    assert diag['message'] == '"Request" has no attribute "id"'
+    assert diag['range']['start'] == {'line': 0, 'character': 0}
+    assert diag['range']['end'] == {'line': 0, 'character': 1}