diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index fa14161551f..0febcf1fcfb 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -1355,9 +1355,9 @@ bootstrap_template1(char *short_version)
 
 	bki_lines = replace_token(bki_lines, "ENCODING", encodingid);
 
-	bki_lines = replace_token(bki_lines, "LC_COLLATE", lc_collate);
+	bki_lines = replace_token(bki_lines, "LC_COLLATE", escape_quotes(lc_collate));
 
-	bki_lines = replace_token(bki_lines, "LC_CTYPE", lc_ctype);
+	bki_lines = replace_token(bki_lines, "LC_CTYPE", escape_quotes(lc_ctype));
 
 	/*
 	 * Pass correct LC_xxx environment to bootstrap.