diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9f1542..ae978eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,6 +32,7 @@ if (BUILD_SHARED_LIBS)
 else()
   # Building static library
   target_compile_definitions(utf8proc PUBLIC "UTF8PROC_STATIC")
+  list(APPEND UTF8PROC_COMPILE_DEFS "-DUTF8PROC_STATIC")
   if (MSVC)
     set_target_properties(utf8proc PROPERTIES OUTPUT_NAME "utf8proc_static")
   endif()
@@ -54,6 +55,7 @@ if (UTF8PROC_INSTALL)
     LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
     RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
   )
+  string(REPLACE ";" " " UTF8PROC_COMPILE_DEF "${UTF8PROC_COMPILE_DEFS}")
   configure_file(libutf8proc.pc.cmakein libutf8proc.pc @ONLY)
   install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libutf8proc.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
   # Install CMake targets file.
diff --git a/libutf8proc.pc.cmakein b/libutf8proc.pc.cmakein
index a8638be..37a98f4 100644
--- a/libutf8proc.pc.cmakein
+++ b/libutf8proc.pc.cmakein
@@ -7,4 +7,4 @@ Name: libutf8proc
 Description: UTF8 processing
 Version: @PROJECT_VERSION@
 Libs: -L${libdir} -lutf8proc
-Cflags: -I${includedir} -DUTF8PROC_EXPORTS
+Cflags: -I${includedir} @UTF8PROC_COMPILE_DEF@