diff --git a/.gitignore b/.gitignore
index 5704e73..0b50ec3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 .idea
-*Qt_5_9_0*
\ No newline at end of file
+*Qt_5_9_0*
+cmake-build-debug
+cmake-build-release
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..20e9a2d
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 2.8.11)
+
+project(cracker)
+
+# Find includes in corresponding build directories
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+# Instruct CMake to run moc automatically when needed.
+set(CMAKE_AUTOMOC ON)
+
+IF (WIN32)
+    # Set the path to your qt setup here
+    set (CMAKE_PREFIX_PATH "C:/Qt/5.9/mingw53_32/")
+ENDIF()
+
+# Find the QtCore library
+find_package(Qt5Core)
+get_target_property(QtCore_location Qt5::Core LOCATION)
+
+# Tell CMake to create the helloworld executable
+add_executable(cracker
+        cracker/main.cpp
+        cracker/keyspacethread.cpp
+        cracker/runthread.cpp
+
+        cracker/keyspacethread.h
+        cracker/runthread.h)
+
+# Use the Widgets module from Qt 5.
+target_link_libraries(cracker Qt5::Core)
\ No newline at end of file
diff --git a/build/Qt5Core.dll b/build/Qt5Core.dll
deleted file mode 100644
index 2da7dbe..0000000
Binary files a/build/Qt5Core.dll and /dev/null differ
diff --git a/build/Qt5Network.dll b/build/Qt5Network.dll
deleted file mode 100644
index 2eb7a6b..0000000
Binary files a/build/Qt5Network.dll and /dev/null differ
diff --git a/build/cracker.exe b/build/cracker.exe
deleted file mode 100644
index 3fb9faf..0000000
Binary files a/build/cracker.exe and /dev/null differ
diff --git a/build/generic-cracker.7z b/build/generic-cracker.7z
deleted file mode 100644
index 34c89ac..0000000
Binary files a/build/generic-cracker.7z and /dev/null differ
diff --git a/cracker/runthread.h b/cracker/runthread.h
index 614aa5e..94dd09c 100644
--- a/cracker/runthread.h
+++ b/cracker/runthread.h
@@ -9,6 +9,7 @@
 #include <QTextStream>
 #include <QCryptographicHash>
 #include <QDebug>
+#include <cmath>
 
 class RunThread : public QThread
 {