diff --git a/Makefile.emscripten b/Makefile.emscripten
index 8fdd176..8defc54 100644
--- a/Makefile.emscripten
+++ b/Makefile.emscripten
@@ -381,7 +381,8 @@ PROJECT_SOURCE_FILES ?= \
     $(PROJECT_SOURCE_PATH)/Gameplay.c \
     $(PROJECT_SOURCE_PATH)/Title.c \
     $(PROJECT_SOURCE_PATH)/Credits.c \
-    $(PROJECT_SOURCE_PATH)/Gameover.c
+    $(PROJECT_SOURCE_PATH)/Gameover.c \
+    $(PROJECT_SOURCE_PATH)/Options.c
 
 # Define all object files from source files
 OBJS = $(patsubst %.c, %.o, $(PROJECT_SOURCE_FILES))
diff --git a/src/Options.c b/src/Options.c
index 680f59a..576b919 100644
--- a/src/Options.c
+++ b/src/Options.c
@@ -13,7 +13,7 @@
 #include "Controls.h"
 #include "Options.h"
 
-int optionsSelected = 0, finishfromOptionsScreen = 0;
+int optionsSelected = 0, finishfromOptionsScreen = 0, mute = 0, fullscreen = 0;
 
 void InitOptionsScreen(void)
 {
diff --git a/src/Options.h b/src/Options.h
index de75d98..a350481 100644
--- a/src/Options.h
+++ b/src/Options.h
@@ -9,7 +9,7 @@
 #ifndef OPTIONS_HEADER
 #define OPTIONS_HEADER
 
-bool mute;
-bool fullscreen;
+extern int mute;
+extern int fullscreen;
 
 #endif