1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index d56c0e4aad..ed75ed422b 100644
--- a/Makefile
+++ b/Makefile
@@ -1212,7 +1212,7 @@ ARFLAGS = rcs
 PTHREAD_CFLAGS =
 
 # For the 'sparse' target
-SPARSE_FLAGS ?=
+SPARSE_FLAGS ?= -std=gnu99
 SP_EXTRA_FLAGS = -Wno-universal-initializer
 
 # For informing GIT-BUILD-OPTIONS of the SANITIZE=leak target