diff --git a/src/nwnss/CMakeLists.txt b/src/nwnss/CMakeLists.txt
index de14120..46f1795 100644
--- a/src/nwnss/CMakeLists.txt
+++ b/src/nwnss/CMakeLists.txt
@@ -117,24 +117,26 @@ set_target_properties(nwnss PROPERTIES
 
 target_compile_features(nwnss PRIVATE c_std_99)
 target_compile_options(nwnss PRIVATE -fshort-wchar)
-target_compile_definitions(nwnss PRIVATE
-    _GNU_SOURCE
-    Linux
-    _NSS_INTERNAL_
-    IAPX386
-    MsgTag
-    _NO_NETWARE_FLAG_INLINES_
-    DS_FOR_NW
-    UNIX
-    COMPILER_NO_INCOMPLETE_OFFSETOF
-    zLINUX=1
-    zLINUX_2_6=1
-    zNETWARE=0
-    MARS_NWE_NWCORE_DOS_CODEPAGE="VENDORS/MICSFT/PC/CP850"
-    MARS_NWE_NWCORE_MAC_CODEPAGE="VENDORS/APPLE/ROMAN"
-    MARS_NWE_NWNSS_UNICODE
-    MARS_NWE_NWNSS_USERSPACE
-    MARS_NWE_VERSION_STRING="${MARS_NWE_VERSION}")
+target_compile_definitions(nwnss
+    PUBLIC
+        _GNU_SOURCE
+        Linux
+        _NSS_INTERNAL_
+        IAPX386
+        MsgTag
+        _NO_NETWARE_FLAG_INLINES_
+        DS_FOR_NW
+        UNIX
+        COMPILER_NO_INCOMPLETE_OFFSETOF
+        zLINUX=1
+        zLINUX_2_6=1
+        zNETWARE=0
+        MARS_NWE_NWNSS_USERSPACE
+    PRIVATE
+        MARS_NWE_NWCORE_DOS_CODEPAGE="VENDORS/MICSFT/PC/CP850"
+        MARS_NWE_NWCORE_MAC_CODEPAGE="VENDORS/APPLE/ROMAN"
+        MARS_NWE_NWNSS_UNICODE
+        MARS_NWE_VERSION_STRING="${MARS_NWE_VERSION}")
 
 target_include_directories(nwnss
     PUBLIC