diff --git a/src/auditor/generate-auditor-basedb.conf b/src/auditor/generate-auditor-basedb.conf
index 5cd28269f..db82068e2 100644
--- a/src/auditor/generate-auditor-basedb.conf
+++ b/src/auditor/generate-auditor-basedb.conf
@@ -11,7 +11,6 @@ PORT = 8081
 BASE_URL = http://localhost:8081/
 SIGNKEY_DURATION = 4 weeks
 SIGNKEY_LEGAL_DURATION = 4 weeks
-LEGAL_DURATION = 2 years
 LOOKAHEAD_SIGN = 32 weeks 1 day
 LOOKAHEAD_PROVIDE = 4 weeks 1 day
 
diff --git a/src/benchmark/benchmark.conf b/src/benchmark/benchmark.conf
index ed02cfc2d..3becf107b 100644
--- a/src/benchmark/benchmark.conf
+++ b/src/benchmark/benchmark.conf
@@ -13,8 +13,7 @@ CURRENCY_ROUND_UNIT = EUR:0.01
 [exchange]
 # how long is one signkey valid?
 signkey_duration = 4 weeks
-# how long are the signatures with the signkey valid?
-legal_duration = 2 years
+signkey_legal_duration = 2 years
 # how long do we provide to clients denomination and signing keys
 # ahead of time?
 lookahead_provide = 4 weeks 1 day
diff --git a/src/exchange/test_taler_exchange_httpd.conf b/src/exchange/test_taler_exchange_httpd.conf
index 80e0826b8..29ecdeb1c 100644
--- a/src/exchange/test_taler_exchange_httpd.conf
+++ b/src/exchange/test_taler_exchange_httpd.conf
@@ -30,9 +30,6 @@ PRIVACY_ETAG = 0
 # how long is one signkey valid?
 SIGNKEY_DURATION = 4 weeks
 
-# how long are the signatures with the signkey valid?
-LEGAL_DURATION = 2 years
-
 # how long do we generate denomination and signing keys
 # ahead of time?
 LOOKAHEAD_SIGN = 32 weeks 1 day
diff --git a/src/exchange/test_taler_exchange_unix.conf b/src/exchange/test_taler_exchange_unix.conf
index 9ce4fb9fc..515a38266 100644
--- a/src/exchange/test_taler_exchange_unix.conf
+++ b/src/exchange/test_taler_exchange_unix.conf
@@ -15,6 +15,7 @@ TERMS_DIR = ../../contrib/tos
 # Etag / filename for the terms of service.
 TERMS_ETAG = 0
 
+# how long are the signatures with the signkey valid?
 SIGNKEY_LEGAL_DURATION = 2 years
 
 # Directory with our privacy policy.
@@ -27,9 +28,6 @@ PRIVACY_ETAG = 0
 # how long is one signkey valid?
 SIGNKEY_DURATION = 4 weeks
 
-# how long are the signatures with the signkey valid?
-LEGAL_DURATION = 2 years
-
 # how long do we generate denomination and signing keys
 # ahead of time?
 LOOKAHEAD_SIGN = 32 weeks 1 day