diff --git a/experiments/minimal.c b/experiments/minimal.c
index 9a613d8..7d6510f 100644
--- a/experiments/minimal.c
+++ b/experiments/minimal.c
@@ -1,6 +1,6 @@
 
 /*
-* clang -L/usr/local/lib -I/usr/local/include -lmdbx minimal.c -o minimal-tset
+* clang -L/usr/local/lib -I/usr/local/include -lmdbx minimal.c -o minimal-test
 */
 
 #include "mdbx.h"
@@ -27,7 +27,7 @@ main()
 	 *
 	 */
 	// rc = mdbx_txn_begin( env, NULL, MDBX_TXN_READWRITE, &txn );
-	
+
 	/*
 	 * Using a readonly transaction handle seemingly fails for
 	 * use with mdbx_dbi_open().
diff --git a/ext/mdbx_ext/database.c b/ext/mdbx_ext/database.c
index 126d262..7ead024 100644
--- a/ext/mdbx_ext/database.c
+++ b/ext/mdbx_ext/database.c
@@ -780,8 +780,6 @@ rmdbx_database_initialize( int argc, VALUE *argv, VALUE self )
 
 	/* Environment and database options setup, overrides.
 	 */
-	opt = rb_hash_delete( opts, ID2SYM( rb_intern("coalesce") ) );
-	if ( RTEST(opt) ) db->settings.env_flags = db->settings.env_flags | MDBX_COALESCE;
 	opt = rb_hash_delete( opts, ID2SYM( rb_intern("compatible") ) );
 	if ( RTEST(opt) ) {
 		db->settings.db_flags  = db->settings.db_flags | MDBX_DB_ACCEDE;