diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b69476..0cd459d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 # SQLite3: use system library on Linux, vendored amalgamation on Windows cross-compile
 find_package(SQLite3 QUIET)
-if(NOT SQLite3_FOUND)
+if(NOT SQLite3_FOUND AND NOT TARGET sqlite3_vendored)
     # Build from amalgamation
     set(SQLITE3_AMALG_DIR ${CMAKE_SOURCE_DIR}/vendor/sqlite3)
     add_library(sqlite3_vendored STATIC ${SQLITE3_AMALG_DIR}/sqlite3.c)