diff --git a/test/bytecode_2.6_run/01_lambda_call.pyc b/test/bytecode_2.6_run/01_lambda_call.pyc
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index 00000000..48a7af00
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diff --git a/test/bytecode_2.7_run/01_lambda_call.pyc b/test/bytecode_2.7_run/01_lambda_call.pyc
new file mode 100644
index 00000000..2b82ec38
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diff --git a/test/bytecode_3.7_run/01_lambda_call.pyc b/test/bytecode_3.7_run/01_lambda_call.pyc
new file mode 100644
index 00000000..a22ac91c
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diff --git a/test/bytecode_3.8_run/01_lambda_call.pyc b/test/bytecode_3.8_run/01_lambda_call.pyc
new file mode 100644
index 00000000..66218d4d
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diff --git a/test/simple_source/bug22/01_lambda_call.py b/test/simple_source/bug22/01_lambda_call.py
new file mode 100644
index 00000000..b39c4974
--- /dev/null
+++ b/test/simple_source/bug22/01_lambda_call.py
@@ -0,0 +1,4 @@
+# From https://github.com/rocky/python-uncompyle6/issues/350
+# This is RUNNABLE!
+a = (lambda x: x)(abs)
+assert a(-3) == 3
diff --git a/uncompyle6/semantics/customize37.py b/uncompyle6/semantics/customize37.py
index a9663b8d..91d25032 100644
--- a/uncompyle6/semantics/customize37.py
+++ b/uncompyle6/semantics/customize37.py
@@ -1,4 +1,4 @@
-#  Copyright (c) 2019-2020 by Rocky Bernstein
+#  Copyright (c) 2019-2021 by Rocky Bernstein
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -275,11 +275,16 @@ def customize_for_version37(self, version):
             and opname == "CALL_FUNCTION_1"
             or not re.match(r"\d", opname[-1])
         ):
+            if node[0][0] == "_mklambda":
+                template = "(%c)(%p)"
+            else:
+                template = "%c(%p)"
             self.template_engine(
-                ("%c(%p)",
+                (template,
                  (0, "expr"),
                  (1, PRECEDENCE["yield"]-1)),
-                node)
+                node
+                )
             self.prec = p
             self.prune()
         else: