diff --git a/src/plugins/CMakeLists.txt b/src/plugins/CMakeLists.txt
index 7e19b67f0..af1d2d501 100644
--- a/src/plugins/CMakeLists.txt
+++ b/src/plugins/CMakeLists.txt
@@ -39,7 +39,7 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src/3rdparty/harfbuzz/src
 )
 
-if(NOT ${KATIE_TYPE} EQUAL SHARED)
+if(NOT ${KATIE_TYPE} STREQUAL SHARED)
     add_definitions(-DQT_STATICPLUGIN)
 endif()