diff --git a/Foundation/CMakeLists.txt b/Foundation/CMakeLists.txt
index f093991..c9fa2e5 100644
--- a/Foundation/CMakeLists.txt
+++ b/Foundation/CMakeLists.txt
@@ -103,6 +103,21 @@ set_target_properties(Foundation
 if(POCO_UNBUNDLED)
 	target_link_libraries(Foundation PUBLIC unofficial::pcre::pcre ZLIB::ZLIB)
 	target_compile_definitions(Foundation PUBLIC POCO_UNBUNDLED)
+    add_definitions(
+        -D_pcre_utf8_table1=_poco_pcre_utf8_table1
+        -D_pcre_utf8_table1_size=_poco_pcre_utf8_table1_size
+        -D_pcre_utf8_table2=_poco_pcre_utf8_table2
+        -D_pcre_utf8_table3=_poco_pcre_utf8_table3
+        -D_pcre_utf8_table4=_poco_pcre_utf8_table4
+        -D_pcre_utt_names=_poco_pcre_utt_names
+        -D_pcre_utt=_poco_pcre_utt
+        -D_pcre_utt_size=_poco_pcre_utt_size
+        -D_pcre_OP_lengths=_poco_pcre_OP_lengths
+        -D_pcre_hspace_list=_poco_pcre_hspace_list
+        -D_pcre_vspace_list=_poco_pcre_vspace_list
+        -D_pcre_ucp_gentype=_poco_pcre_ucp_gentype
+        -D_pcre_ucp_gbtable=_poco_pcre_ucp_gbtable
+    )
 endif(POCO_UNBUNDLED)
 
 target_include_directories(Foundation