--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -301,7 +301,7 @@
 sfml_set_option(SFML_INSTALL_PKGCONFIG_FILES ${SFML_INSTALL_PKGCONFIG_DEFAULT} BOOL "TRUE to automatically install pkg-config files so other projects can find SFML")
 
 if(SFML_INSTALL_PKGCONFIG_FILES)
-    sfml_set_option(SFML_PKGCONFIG_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/${SFML_PKGCONFIG_DIR}" PATH "Install directory for SFML's pkg-config .pc files")
+    sfml_set_option(SFML_PKGCONFIG_INSTALL_PREFIX "${SFML_PKGCONFIG_DIR}" PATH "Install directory for SFML's pkg-config .pc files")
 
     foreach(sfml_module IN ITEMS all system window graphics audio network)
         CONFIGURE_FILE(
