diff --git a/GNUmakefile b/GNUmakefile
index c3a62b92..1315d82d 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -47,6 +47,7 @@ CFLAGS += \
 	-Wextra \
 	-Wno-unused-parameter \
 	-MMD \
+	-MP \
 	-ffunction-sections \
 	-fdata-sections \
 	-fno-exceptions \