diff --git a/ch03_bitcoin-core.adoc b/ch03_bitcoin-core.adoc
index be3df2b1..f8b67794 100644
--- a/ch03_bitcoin-core.adoc
+++ b/ch03_bitcoin-core.adoc
@@ -293,7 +293,7 @@ fixes the((("Bitcoin Core", "compiling from source code", "configuring build", s
 ==== Building the Bitcoin Core Executables
 
 Next, you
-will ((("Bitcoin Core", "compiling from source code", "building executables", id="bitcoin-core-compile-execute")))((("compiling Bitcoin Core from source code", "building executables", id="compile-bitcoin-core-execute")))((("source code", "compiling Bitcoin Core", "building executables", id="source-code-compile-execute")))((("executables (Bitcoin Core)", "building", id="executable-build")))compile the source code, a process that can take up to an hour to
+will ((("Bitcoin Core", "compiling from source code", "building executables")))((("compiling Bitcoin Core from source code", "building executables")))((("source code", "compiling Bitcoin Core", "building executables")))((("executables (Bitcoin Core), building")))compile the source code, a process that can take up to an hour to
 complete, depending on the speed of your CPU and available memory.
 If an error
 occurs, or the compilation process is interrupted, it can be resumed any
@@ -335,7 +335,7 @@ libtool: install: /usr/bin/install -c bitcoin-tx /usr/local/bin/bitcoin-tx
 The default installation of +bitcoind+
 puts it in _/usr/local/bin_. You can confirm that Bitcoin Core is
 correctly installed by asking the system for the path of the
-executables, ((("Bitcoin Core", "compiling from source code", startref="bitcoin-core-compile")))((("compiling Bitcoin Core from source code", startref="compile-bitcoin-core")))((("source code", "compiling Bitcoin Core", startref="source-code-compile")))((("Bitcoin Core", "compiling from source code", "building executables", startref="bitcoin-core-compile-execute")))((("compiling Bitcoin Core from source code", "building executables", startref="compile-bitcoin-core-execute")))((("source code", "compiling Bitcoin Core", "building executables", startref="source-code-compile-execute")))((("executables (Bitcoin Core)", "building", startref="executable-build")))as follows:
+executables, ((("Bitcoin Core", "compiling from source code", startref="bitcoin-core-compile")))((("compiling Bitcoin Core from source code", startref="compile-bitcoin-core")))((("source code", "compiling Bitcoin Core", startref="source-code-compile")))as follows:
 
 ----
 $ which bitcoind