diff --git a/cmake/modules/FindGStreamer.cmake b/cmake/modules/FindGStreamer.cmake
index 0e0ae17..25e82b8 100644
--- a/cmake/modules/FindGStreamer.cmake
+++ b/cmake/modules/FindGStreamer.cmake
@@ -60,7 +60,9 @@ find_path(GSTREAMER_INCLUDE_DIR_ARCH
           HINTS ${PKG_GSTREAMER_INCLUDE_DIRS} ${PKG_GSTREAMER_INCLUDEDIR} ${GSTREAMER_ROOT}/lib/gstreamer-1.0/include
           PATH_SUFFIXES gstreamer-${GSTREAMER_ABI_VERSION})
 
-set(GSTREAMER_INCLUDE_DIR ${GSTREAMER_INCLUDE_DIR} ${GSTREAMER_INCLUDE_DIR_ARCH})
+if (GSTREAMER_INCLUDE_DIR_ARCH)
+    set(GSTREAMER_INCLUDE_DIR ${GSTREAMER_INCLUDE_DIR} ${GSTREAMER_INCLUDE_DIR_ARCH})
+endif ()
 
 if (PKG_GSTREAMER_PLUGIN_DIR)
     set(_GSTREAMER_PLUGIN_DIR ${PKG_GSTREAMER_PLUGIN_DIR})