diff --git a/CMakeLists.txt b/CMakeLists.txt
index c722c28..e029d29 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,7 +67,7 @@ endif ()
 
 set (gettext_DEPENDS)
 if (NOT APPLE)
-  set (gettext_DEPENDS "${gettext_DEPENDS} libiconv_Project")
+  set (gettext_DEPENDS ${gettext_DEPENDS} libiconv_Project)
 endif ()
 
 ExternalProject_Add (gettext_Project
@@ -233,7 +233,7 @@ ExternalProject_Add (SDL2_image_Project
 
 set (SDL2_mixer_DEPENDS SDL2_Project)
 if (NOT APPLE)
-  set (SDL2_mixer_DEPENDS "${SDL2_mixer_DEPENDS} libiconv_Project")
+  set (SDL2_mixer_DEPENDS ${SDL2_mixer_DEPENDS} libiconv_Project)
 endif ()
 
 ExternalProject_Add (SDL2_mixer_Project