diff --git a/engine/backend/fs/amigaos4/amigaos4-fs.cpp b/engine/backend/fs/amigaos4/amigaos4-fs.cpp
index 7ccc3778b24..638802faf01 100644
--- a/engine/backend/fs/amigaos4/amigaos4-fs.cpp
+++ b/engine/backend/fs/amigaos4/amigaos4-fs.cpp
@@ -36,6 +36,7 @@
 #endif
 
 #include "common/util.h"
+#include "common/debug.h"
 #include "engine/backend/fs/abstract-fs.h"
 
 #define ENTER() /* debug(6, "Enter") */
diff --git a/engine/lua.cpp b/engine/lua.cpp
index b9c960d227f..fabc043941d 100644
--- a/engine/lua.cpp
+++ b/engine/lua.cpp
@@ -270,7 +270,7 @@ static void FunctionName() {
 	const char *name;
 	char buf[256];
 	const char *filename;
-	int line;
+	int32 line;
 
 	DEBUG_FUNCTION();
 	if (!lua_isfunction(lua_getparam(1))) {
@@ -294,7 +294,7 @@ static void FunctionName() {
 			else if (line < 0)
 				sprintf(buf, "%.100s", filename);
 			else {
-				sprintf(buf, "function (%.100s:%d)", filename, line);
+				sprintf(buf, "function (%.100s:%d)", filename, (int)line);
 				filename = NULL;
 			}
 		}