diff --git a/doc/build-freebsd.md b/doc/build-freebsd.md
index 7525cca863..d5a3004c8a 100644
--- a/doc/build-freebsd.md
+++ b/doc/build-freebsd.md
@@ -131,6 +131,6 @@ This explicitly enables the GUI and disables legacy wallet support. If `qt5` is
 **Important**: Use `gmake` (the non-GNU `make` will exit with an error).
 
 ```bash
-gmake # use -jX here for parallelism
+gmake # use "-j N" for N parallel jobs
 gmake check # Run tests if Python 3 is available
 ```
diff --git a/doc/build-netbsd.md b/doc/build-netbsd.md
index b455b7371e..c28cb4df5b 100644
--- a/doc/build-netbsd.md
+++ b/doc/build-netbsd.md
@@ -79,6 +79,6 @@ Without wallet:
 
 Build and run the tests:
 ```bash
-gmake # use -jX here for parallelism
+gmake # use "-j N" here for N parallel jobs
 gmake check
 ```
diff --git a/doc/build-openbsd.md b/doc/build-openbsd.md
index bbda6de352..7b4efce1fd 100644
--- a/doc/build-openbsd.md
+++ b/doc/build-openbsd.md
@@ -85,7 +85,7 @@ To configure with GUI:
 
 Build and run the tests:
 ```bash
-gmake # use -jX here for parallelism
+gmake # use "-j N" here for N parallel jobs
 gmake check
 ```
 
diff --git a/doc/build-osx.md b/doc/build-osx.md
index eaae458475..417265793c 100644
--- a/doc/build-osx.md
+++ b/doc/build-osx.md
@@ -276,7 +276,7 @@ After configuration, you are ready to compile.
 Run the following in your terminal to compile Dash Core:
 
 ``` bash
-make -jx    # use -jX here for parallelism
+make        # use "-j N" here for N parallel jobs
 make check  # Run tests if Python 3 is available
 ```
 
diff --git a/doc/build-unix.md b/doc/build-unix.md
index 27f00b5b1e..07dcd80676 100644
--- a/doc/build-unix.md
+++ b/doc/build-unix.md
@@ -22,7 +22,7 @@ To Build
 ```sh
 ./autogen.sh
 ./configure
-make
+make # use "-j N" for N parallel jobs
 make install # optional
 ```