diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2d1f31e..b97a77f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,6 +67,7 @@ add_library(json-c-static
 )
 
 set_property(TARGET json-c PROPERTY C_STANDARD 99)
+set_property(TARGET json-c-static PROPERTY C_STANDARD 99)
 set_target_properties(json-c-static PROPERTIES OUTPUT_NAME json-c)
 
 install(TARGETS json-c json-c-static