diff --git a/src/ideviceinstaller.c b/src/ideviceinstaller.c
index 301a5b8..fbd24d0 100644
--- a/src/ideviceinstaller.c
+++ b/src/ideviceinstaller.c
@@ -926,7 +926,7 @@
 			/* extract the CFBundleIdentifier from the package */
 
 			/* construct full filename to Info.plist */
-			char *filename = (char*)malloc(strlen(appid)+10+1);
+			char *filename = (char*)malloc(strlen(appid)+11+1);
 			strcpy(filename, appid);
 			strcat(filename, "/Info.plist");