diff --git a/manual/tracy.tex b/manual/tracy.tex
index e1ce2dc0..0447fa8d 100644
--- a/manual/tracy.tex
+++ b/manual/tracy.tex
@@ -660,7 +660,7 @@ vcpkg install --triplet x64-windows-static freetype glfw3 capstone[arm,arm64,x86
 
 \paragraph{Unix}
 
-On Unix systems you will need to install the \texttt{pkg-config} utility and the following libraries: \texttt{glfw}, \texttt{freetype}, \texttt{capstone}. Some Linux distributions will require you to add a \texttt{lib} prefix and a \texttt{-dev}, or \texttt{-devel} postfix to library names. You may also need to add a seemingly random number to the library name (for example: \texttt{freetype2}, or \texttt{freetype6}). How fun!
+On Unix systems you will need to install the \texttt{pkg-config} utility and the following libraries: \texttt{glfw}, \texttt{freetype}, \texttt{capstone}, \texttt{gtk2.0}. Some Linux distributions will require you to add a \texttt{lib} prefix and a \texttt{-dev}, or \texttt{-devel} postfix to library names. You may also need to add a seemingly random number to the library name (for example: \texttt{freetype2}, or \texttt{freetype6}). The GTK library could be installed as \texttt{libgtk2.0-dev} on some systems. How fun!
 
 Installation of the libraries on OSX can be facilitated using the \texttt{brew} package manager.