diff --git a/mythril/analysis/module/loader.py b/mythril/analysis/module/loader.py
index 11b1498e..4ed86b91 100644
--- a/mythril/analysis/module/loader.py
+++ b/mythril/analysis/module/loader.py
@@ -9,17 +9,21 @@ from mythril.analysis.module.modules.dependence_on_predictable_vars import (
 )
 from mythril.analysis.module.modules.deprecated_ops import DeprecatedOperations
 from mythril.analysis.module.modules.ether_thief import EtherThief
-from mythril.analysis.module.modules.exceptions import ReachableExceptions
+from mythril.analysis.module.modules.exceptions import Exceptions
 from mythril.analysis.module.modules.external_calls import ExternalCalls
 from mythril.analysis.module.modules.integer import IntegerArithmetics
 from mythril.analysis.module.modules.multiple_sends import MultipleSends
-from mythril.analysis.module.modules.state_change_external_calls import StateChangeAfterCall
+from mythril.analysis.module.modules.state_change_external_calls import (
+    StateChangeAfterCall,
+)
 from mythril.analysis.module.modules.suicide import AccidentallyKillable
 from mythril.analysis.module.modules.unchecked_retval import UncheckedRetval
 from mythril.analysis.module.modules.user_assertions import UserAssertions
 
 from mythril.analysis.module.base import EntryPoint
 
+from mythril.exceptions import DetectorNotFoundError
+
 from typing import Optional, List
 
 
@@ -53,11 +57,28 @@ class ModuleLoader(object, metaclass=Singleton):
         :param white_list: If specified: only return whitelisted detection modules
         :return: The selected detection modules
         """
+
         result = self._modules[:]
+
+        if white_list:
+
+            # Sanity check
+
+            available_names = [type(module).__name__ for module in result]
+
+            for name in white_list:
+                if name not in available_names:
+                    raise DetectorNotFoundError(
+                        "Invalid detection module: {}".format(name)
+                    )
+
+            result = [
+                module for module in result if type(module).__name__ in white_list
+            ]
+
         if entry_point:
             result = [module for module in result if module.entry_point == entry_point]
-        if white_list:
-            result = [module for module in result if module.name in white_list]
+
         return result
 
     def _register_mythril_modules(self):
@@ -69,7 +90,7 @@ class ModuleLoader(object, metaclass=Singleton):
                 PredictableVariables(),
                 DeprecatedOperations(),
                 EtherThief(),
-                ReachableExceptions(),
+                Exceptions(),
                 ExternalCalls(),
                 IntegerArithmetics(),
                 MultipleSends(),
diff --git a/mythril/analysis/module/modules/exceptions.py b/mythril/analysis/module/modules/exceptions.py
index 73b10803..7edcb0f3 100644
--- a/mythril/analysis/module/modules/exceptions.py
+++ b/mythril/analysis/module/modules/exceptions.py
@@ -11,7 +11,7 @@ from mythril.laser.ethereum.state.global_state import GlobalState
 log = logging.getLogger(__name__)
 
 
-class ReachableExceptions(DetectionModule):
+class Exceptions(DetectionModule):
     """"""
 
     name = "Reachable Exceptions"
@@ -76,4 +76,4 @@ class ReachableExceptions(DetectionModule):
         return []
 
 
-detector = ReachableExceptions()
+detector = Exceptions()
diff --git a/mythril/exceptions.py b/mythril/exceptions.py
index 7988759b..2f6ad04f 100644
--- a/mythril/exceptions.py
+++ b/mythril/exceptions.py
@@ -39,3 +39,10 @@ class AddressNotFoundError(MythrilBaseException):
     found."""
 
     pass
+
+
+class DetectorNotFoundError(MythrilBaseException):
+    """A Mythril exception denoting attempted usage of a non-existant
+    detection module."""
+
+    pass
diff --git a/mythril/interfaces/cli.py b/mythril/interfaces/cli.py
index d5cc5ed5..99187f6a 100644
--- a/mythril/interfaces/cli.py
+++ b/mythril/interfaces/cli.py
@@ -17,7 +17,11 @@ import traceback
 import mythril.support.signatures as sigs
 from argparse import ArgumentParser, Namespace, RawTextHelpFormatter
 from mythril import mythx
-from mythril.exceptions import AddressNotFoundError, CriticalError
+from mythril.exceptions import (
+    AddressNotFoundError,
+    DetectorNotFoundError,
+    CriticalError,
+)
 from mythril.laser.ethereum.transaction.symbolic import ACTORS
 from mythril.mythril import (
     MythrilAnalyzer,
@@ -729,9 +733,11 @@ def execute_command(
                     "markdown": report.as_markdown(),
                 }
                 print(outputs[args.outform])
-            except ModuleNotFoundError as e:
+            except DetectorNotFoundError as e:
+                exit_with_error(args.outform, format(e))
+            except CriticalError as e:
                 exit_with_error(
-                    args.outform, "Error loading analysis modules: " + format(e)
+                    args.outform, "Analysis error encountered: " + format(e)
                 )
 
     else:
diff --git a/mythril/laser/ethereum/keccak_function_manager.py b/mythril/laser/ethereum/keccak_function_manager.py
index 6fbbe583..29e421c8 100644
--- a/mythril/laser/ethereum/keccak_function_manager.py
+++ b/mythril/laser/ethereum/keccak_function_manager.py
@@ -141,7 +141,7 @@ class KeccakFunctionManager:
         )
         concrete_cond = symbol_factory.Bool(False)
         for key, keccak in self.concrete_hashes.items():
-            hash_eq = And(func(func_input) == keccak, key == func_input,)
+            hash_eq = And(func(func_input) == keccak, key == func_input)
             concrete_cond = Or(concrete_cond, hash_eq)
         return And(inv(func(func_input)) == func_input, Or(cond, concrete_cond))
 
diff --git a/mythril/mythril/mythril_analyzer.py b/mythril/mythril/mythril_analyzer.py
index d94b2faf..844031af 100644
--- a/mythril/mythril/mythril_analyzer.py
+++ b/mythril/mythril/mythril_analyzer.py
@@ -18,6 +18,7 @@ from mythril.analysis.report import Report, Issue
 from mythril.ethereum.evmcontract import EVMContract
 from mythril.laser.smt import SolverStatistics
 from mythril.support.start_time import StartTime
+from mythril.exceptions import DetectorNotFoundError
 
 log = logging.getLogger(__name__)
 
@@ -172,6 +173,9 @@ class MythrilAnalyzer:
                     custom_modules_directory=self.custom_modules_directory,
                 )
                 issues = fire_lasers(sym, modules)
+            except DetectorNotFoundError as e:
+                # Bubble up
+                raise e
             except KeyboardInterrupt:
                 log.critical("Keyboard Interrupt")
                 if self.iprof is not None: