diff --git a/appimagetool.c b/appimagetool.c
index c05a47449..387dc3e1c 100644
--- a/appimagetool.c
+++ b/appimagetool.c
@@ -254,7 +254,7 @@ static void replacestr(char *line, const char *search, const char *replace)
     }
 }
 
-void guess_arch(const gchar *archfile, char* archs) {
+void guess_arch(const gchar *archfile, bool* archs) {
     gchar *carch;
     char line[PATH_MAX];
     char command[PATH_MAX];
@@ -299,7 +299,7 @@ void guess_arch(const gchar *archfile, char* archs) {
     }
 }
 
-void find_arch(const gchar *real_path, const gchar *pattern, char* archs) {
+void find_arch(const gchar *real_path, const gchar *pattern, bool* archs) {
     GDir *dir;
     gchar *full_name;
     dir = g_dir_open(real_path, 0, NULL);
@@ -497,7 +497,7 @@ main (int argc, char *argv[])
         /* If no $ARCH variable is set check a file */
         if (!arch) {
             /* We use the next best .so that we can find to determine the architecture */
-            char archs[4];
+            bool archs[4];
             find_arch(source, "*.so.*", archs);
             int countArchs = 0;
             if (archs[fARCH_i386]) {