diff --git a/lib/databases/mysql b/lib/databases/mysql
index 9524253..94aedc6 100644
--- a/lib/databases/mysql
+++ b/lib/databases/mysql
@@ -5,7 +5,7 @@
 # DATABASE_{HOST,USER,PASSWORD} must be defined
 
 # Save trace setting
-XTRACE=$(set +o | grep xtrace)
+MY_XTRACE=$(set +o | grep xtrace)
 set +o xtrace
 
 register_database mysql
@@ -121,4 +121,4 @@
 }
 
 # Restore xtrace
-$XTRACE
+$MY_XTRACE
diff --git a/lib/databases/postgresql b/lib/databases/postgresql
index 04db714..2c37f49 100644
--- a/lib/databases/postgresql
+++ b/lib/databases/postgresql
@@ -5,7 +5,7 @@
 # DATABASE_{HOST,USER,PASSWORD} must be defined
 
 # Save trace setting
-XTRACE=$(set +o | grep xtrace)
+PG_XTRACE=$(set +o | grep xtrace)
 set +o xtrace
 
 register_database postgresql
@@ -76,4 +76,4 @@
 }
 
 # Restore xtrace
-$XTRACE
+$PG_XTRACE