diff --git a/Makefile b/Makefile
index 3235cc8..6b892bc 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,7 @@ else
 	DUCKDB_BUILD_TYPE = release
 endif
 
-DUCKDB_LIB = libduckdb$(DLSUFFIX)
+DUCKDB_LIB = libduckdb_pg_duckdb$(DLSUFFIX)
 FULL_DUCKDB_LIB = third_party/duckdb/build/$(DUCKDB_BUILD_TYPE)/src/$(DUCKDB_LIB)
 
 ERROR_ON_WARNING ?=
@@ -54,7 +54,7 @@ override PG_CXXFLAGS += -std=c++17 ${DUCKDB_BUILD_CXX_FLAGS} ${COMPILER_FLAGS} -
 # changes to the vendored code in one place.
 override PG_CFLAGS += -Wno-declaration-after-statement
 
-SHLIB_LINK += -Wl,-rpath,$(PG_LIB)/ -lpq -Lthird_party/duckdb/build/$(DUCKDB_BUILD_TYPE)/src -L$(PG_LIB) -lduckdb -lstdc++ -llz4
+SHLIB_LINK += -Wl,-rpath,$(PG_LIB)/ -lpq -Lthird_party/duckdb/build/$(DUCKDB_BUILD_TYPE)/src -L$(PG_LIB) -lduckdb_pg_duckdb -lstdc++ -llz4
 
 include Makefile.global
 
diff --git a/sql/pg_duckdb--0.2.0--0.3.0.sql b/sql/pg_duckdb--0.2.0--0.3.0.sql
index d777d76..af60106 100644
--- a/sql/pg_duckdb--0.2.0--0.3.0.sql
+++ b/sql/pg_duckdb--0.2.0--0.3.0.sql
@@ -1056,3 +1056,6 @@ GRANT ALL ON FUNCTION duckdb.cache(TEXT, TEXT) TO PUBLIC;
 GRANT ALL ON FUNCTION duckdb.cache_info() TO PUBLIC;
 GRANT ALL ON FUNCTION duckdb.cache_delete(TEXT) TO PUBLIC;
 GRANT ALL ON PROCEDURE duckdb.recycle_ddb() TO PUBLIC;
+GRANT ALL ON FUNCTION duckdb.install_extension(TEXT) TO neon_superuser;
+GRANT ALL ON TABLE duckdb.extensions TO neon_superuser;
+GRANT ALL ON SEQUENCE duckdb.extensions_table_seq TO neon_superuser;