diff --git a/makefile.mingw b/makefile.mingw
index 43c56fc8d..1cc29afb5 100644
--- a/makefile.mingw
+++ b/makefile.mingw
@@ -227,7 +227,7 @@ CXXFLAGS = -pipe \
 	   -Wall -W -pedantic -Wshadow -Wno-long-long -Wno-write-strings \
 	   -Wunknown-pragmas -Wundef -Wno-conversion -Wno-missing-braces -Wno-multichar \
 	   -Wuninitialized -Wpointer-arith -Wno-inline -Wno-address  -Wno-unused-value \
-	   -Wno-unused-but-set-variable -Wno-sequence-point \
+	   -Wno-unused-but-set-variable -Wno-sequence-point -Wno-narrowing \
 	   $(DEF) $(incdir)
 
 ifdef BUILD_X64_EXE