diff --git a/require.h b/require.h
index 2a619ea..141673d 100644
--- a/require.h
+++ b/require.h
@@ -8,7 +8,7 @@ extern "C" {
 int require(const char* libname, const char* version, const char* args);
 const char* getLibVersion(const char* libname);
 const char* getLibLocation(const char* libname);
-int libversionShow(const char* pattern, int showLocation);
+int libversionShow(int showLocation, const char* outfile);
 int runScript(const char* filename, const char* args);
 
 #ifdef __cplusplus