diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7531143..119cf5a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,6 @@ elseif (APPLE)
     REQUIRE_INCLUDE_FILE(AppKit/AppKit.h HAS_APPKIT)
     list(APPEND SOURCES src/nfd_cocoa.m)
 elseif (UNIX)
-    REQUIRE_INCLUDE_FILE(gtk/gtk.h HAS_GTK)
     list(APPEND SOURCES src/nfd_gtk.c)
 elseif (UNIX)
     message(FATAL_ERROR "Cannot detect your system, please report to https://github.com/aarcangeli/nativefiledialog-cmake/issues")
@@ -25,3 +24,22 @@ endif ()
 add_library(nativefiledialog ${SOURCES})
 
 target_include_directories(nativefiledialog PUBLIC src/include)
+
+if (UNIX AND NOT APPLE)
+    # GTK3 configuration adapted from https://gist.github.com/fracek/3323924
+
+    # Use the package PkgConfig to detect GTK+ headers/library files
+    find_package(PkgConfig REQUIRED)
+    pkg_check_modules(GTK3 REQUIRED gtk+-3.0)
+
+    # Setup CMake to use GTK+, tell the compiler where to look for headers
+    # and to the linker where to look for libraries
+    target_include_directories(nativefiledialog PRIVATE ${GTK3_INCLUDE_DIRS})
+    target_link_directories(nativefiledialog PRIVATE ${GTK3_LIBRARY_DIRS})
+
+    # Add other flags to the compiler
+    target_compile_options(nativefiledialog PRIVATE ${GTK3_CFLAGS_OTHER})
+
+    # Link the target to the GTK+ libraries
+    target_link_libraries(nativefiledialog PRIVATE ${GTK3_LIBRARIES})
+endif()