diff --git a/CMakeLists.txt b/CMakeLists.txt
index bd923c2..9292c45 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,5 +23,6 @@ target_include_directories(csnake PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include)
 set(SIZE 10 CACHE STRING "Size of game field")
 set(DEFX 0 CACHE STRING "Start x")
 set(DEFY 0 CACHE STRING "Start y")
+set(SLEEP 1000 CACHE STRING "Sleep between frames (ms)")
 
 configure_file(include/config.h.in ${CMAKE_CURRENT_SOURCE_DIR}/include/config.h)
diff --git a/configure b/configure
index 71ed007..58daf1f 100755
--- a/configure
+++ b/configure
@@ -9,7 +9,8 @@ usage()
     OUT     - out file (default: csnake
     SIZE    - size of game field
     DEFX    - start x
-    DEFY    - start y"
+    DEFY    - start y
+    SLEEP   - sleep between frames (ms)"
     exit 1
 }
 
@@ -30,6 +31,7 @@ OUT=${OUT:-csnake}
 SIZE=${SIZE:-10}
 DEFX=${DEFX:-0}
 DEFY=${DEFY:-0}
+SLEEP=${SLEEP:-1000}
 
 echo "Makefile configuration:"
 echo "Compiler: $CC"
@@ -41,6 +43,7 @@ echo "Code configuration:"
 echo "Size: $SIZE"
 echo "Start x: $DEFX"
 echo "Start y: $DEFY"
+echo "Sleep: $SLEEP"
 
 echo "CC = $CC
 CFLAGS = $CFLAGS
@@ -49,4 +52,5 @@ OUT = $OUT" > config.mk
 
 echo "#define SIZE $SIZE
 #define DEFX $DEFX
-#define DEFY $DEFY" > include/config.h
+#define DEFY $DEFY
+#define SLEEP $SLEEP" > include/config.h
diff --git a/include/config.h.in b/include/config.h.in
index 06a7e35..6e8c841 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -1,3 +1,4 @@
 #define SIZE ${SIZE}
 #define DEFX ${DEFX}
 #define DEFY ${DEFY}
+#define SLEEP ${SLEEP}
diff --git a/src/main.c b/src/main.c
index 31e047f..9a22049 100644
--- a/src/main.c
+++ b/src/main.c
@@ -53,7 +53,7 @@ int main(int argc, char **argv)
         for (i = 0; i < SIZE*2; ++i) putchar('-');
         printf("\nScore: %d\n", player->score);
 
-        sleepMS(1000);
+        sleepMS(SLEEP);
         switch (*key)
         {
             case 'q':