diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9a552cc0c..55a5e668c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -12,7 +12,6 @@ set(CSYNC_PUBLIC_INCLUDE_DIRS
 )
 
 set(CSYNC_PRIVATE_INCLUDE_DIRS
-  ${ICONV_INCLUDE_DIRS}
   ${INIPARSER_INCLUDE_DIRS}
   ${SQLITE3_INCLUDE_DIRS}
   ${CSTDLIB_PUBLIC_INCLUDE_DIRS}
@@ -34,7 +33,7 @@ set(CSYNC_LINK_LIBRARIES
 )
 
 if(HAVE_ICONV AND WITH_ICONV)
-    list(APPEND CSYNC_PRIVATE_INCLUDE_DIRS ${ICONV_INCLUDE_DIRS})
+    list(APPEND CSYNC_PRIVATE_INCLUDE_DIRS ${ICONV_INCLUDE_DIR})
     list(APPEND CSYNC_LINK_LIBRARIES ${ICONV_LIBRARIES})
 endif()
 
diff --git a/src/std/CMakeLists.txt b/src/std/CMakeLists.txt
index e48c1c513..d8d38af9c 100644
--- a/src/std/CMakeLists.txt
+++ b/src/std/CMakeLists.txt
@@ -5,8 +5,8 @@ set(CSTDLIB_PUBLIC_INCLUDE_DIRS
   CACHE INTERNAL "cstdlib public include directories"
 )
 
-set(CSYNC_PRIVATE_INCLUDE_DIRS
-  ${ICONV_INCLUDE_DIRS}
+set(CSTDLIB_PRIVATE_INCLUDE_DIRS
+  ${ICONV_INCLUDE_DIR}
 )
 
 set(CSTDLIB_LIBRARY