diff --git a/src/lua/TPTScriptInterface.cpp b/src/lua/TPTScriptInterface.cpp
index e7ce3d3e0..aaeec105f 100644
--- a/src/lua/TPTScriptInterface.cpp
+++ b/src/lua/TPTScriptInterface.cpp
@@ -124,7 +124,7 @@ ValueType TPTScriptInterface::testType(std::string word)
 			return TypeString;
 }
 
-float TPTScriptInterface::parseNumber(char * stringData)
+int TPTScriptInterface::parseNumber(char * stringData)
 {
 	char cc;
 	int base = 10;
diff --git a/src/lua/TPTScriptInterface.h b/src/lua/TPTScriptInterface.h
index d0144075d..dea284e73 100644
--- a/src/lua/TPTScriptInterface.h
+++ b/src/lua/TPTScriptInterface.h
@@ -7,7 +7,7 @@
 class TPTScriptInterface: public CommandInterface {
 protected:
 	AnyType eval(std::deque<std::string> * words);
-	float parseNumber(char * stringData);
+	int parseNumber(char * stringData);
 	AnyType tptS_set(std::deque<std::string> * words);
 	AnyType tptS_create(std::deque<std::string> * words);
 	AnyType tptS_delete(std::deque<std::string> * words);