diff --git a/scripts/retdec-decompiler.py b/scripts/retdec-decompiler.py
index 50e7fcfc2..a0297fa6f 100644
--- a/scripts/retdec-decompiler.py
+++ b/scripts/retdec-decompiler.py
@@ -17,6 +17,7 @@
 retdec_unpacker = importlib.import_module('retdec-unpacker')
 utils = importlib.import_module('retdec-utils')
 utils.check_python_version()
+utils.ensure_script_is_being_run_from_installed_retdec()
 
 SigFromLib = retdec_signature_from_library_creator.SigFromLib
 Unpacker = retdec_unpacker.Unpacker
diff --git a/scripts/retdec-fileinfo.py b/scripts/retdec-fileinfo.py
index 4b9aa87e0..290f47809 100644
--- a/scripts/retdec-fileinfo.py
+++ b/scripts/retdec-fileinfo.py
@@ -15,6 +15,7 @@
 config = importlib.import_module('retdec-config')
 utils = importlib.import_module('retdec-utils')
 utils.check_python_version()
+utils.ensure_script_is_being_run_from_installed_retdec()
 retdec_archive_decompiler = importlib.import_module('retdec-archive-decompiler')
 
 ArchiveDecompiler = retdec_archive_decompiler.ArchiveDecompiler
diff --git a/scripts/retdec-signature-from-library-creator.py b/scripts/retdec-signature-from-library-creator.py
index 3aa5e6c83..e1b3c0f8a 100644
--- a/scripts/retdec-signature-from-library-creator.py
+++ b/scripts/retdec-signature-from-library-creator.py
@@ -15,6 +15,7 @@
 config = importlib.import_module('retdec-config')
 utils = importlib.import_module('retdec-utils')
 utils.check_python_version()
+utils.ensure_script_is_being_run_from_installed_retdec()
 
 CmdRunner = utils.CmdRunner
 sys.stdout = utils.Unbuffered(sys.stdout)
diff --git a/scripts/retdec-tests-runner.py b/scripts/retdec-tests-runner.py
index e822841b2..b0b05fff9 100644
--- a/scripts/retdec-tests-runner.py
+++ b/scripts/retdec-tests-runner.py
@@ -11,6 +11,7 @@
 import importlib
 utils = importlib.import_module('retdec-utils')
 utils.check_python_version()
+utils.ensure_script_is_being_run_from_installed_retdec()
 
 try:
     import colorama
diff --git a/scripts/retdec-unpacker.py b/scripts/retdec-unpacker.py
index b23920571..fb44ded3b 100644
--- a/scripts/retdec-unpacker.py
+++ b/scripts/retdec-unpacker.py
@@ -28,6 +28,7 @@
 config = importlib.import_module('retdec-config')
 utils = importlib.import_module('retdec-utils')
 utils.check_python_version()
+utils.ensure_script_is_being_run_from_installed_retdec()
 
 CmdRunner = utils.CmdRunner
 sys.stdout = utils.Unbuffered(sys.stdout)
diff --git a/scripts/retdec-utils.py b/scripts/retdec-utils.py
index 50c01d5b3..bc1156bf3 100644
--- a/scripts/retdec-utils.py
+++ b/scripts/retdec-utils.py
@@ -282,6 +282,17 @@ def check_python_version():
     if sys.version_info < (3,4):
         print_error_and_die('Cannot use Python version {} ({}). Use at least Python 3.4.'.format(platform.python_version(), sys.executable))
 
+def ensure_script_is_being_run_from_installed_retdec():
+    # Use this function to assist our users when they try to run the scripts
+    # from the 'retdec/scripts' directory instead of from an installed RetDec.
+    # See https://github.com/avast-tl/retdec/issues/418
+    if not os.path.dirname(__file__).endswith('bin'):
+        print_error_and_die(
+            'You need to build and install RetDec first and then run the installed script via '
+            '`python $RETDEC_INSTALL_DIR/bin/retdec-decompiler.py`.\n'
+            'For more details, see https://github.com/avast-tl/retdec#installation-and-use'
+        )
+
 def tool_exists(tool_name):
     return shutil.which(tool_name) is not None