diff --git a/src/lib/openjp2/openjpeg.c b/src/lib/openjp2/openjpeg.c
index 4665d906..364750c5 100644
--- a/src/lib/openjp2/openjpeg.c
+++ b/src/lib/openjp2/openjpeg.c
@@ -132,7 +132,7 @@ static OPJ_BOOL opj_seek_from_file (OPJ_OFF_T p_nb_bytes, FILE * p_user_data)
 #ifdef _WIN32
 #ifndef OPJ_STATIC
 BOOL APIENTRY
-DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
+DllMain(HINSTANCE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
 
 	OPJ_ARG_NOT_USED(lpReserved);
 	OPJ_ARG_NOT_USED(hModule);