diff --git a/.travis.yml b/.travis.yml
index 884676f..7d2629c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,6 @@ before_install:
 script:
   - ./autogen.sh && ./configure --enable-gcov CFLAGS="-g -O0" && make && make check
 after_success:
-  - coveralls --gcov gcov-4.9 --exclude samples --gcov-options '\-lp' -b .
+  - coveralls --gcov gcov-4.9 --exclude samples --exclude dependencies --gcov-options '\-lp' -b .
 after_failure:
   - cat $(find check -iname '*.log') /dev/null
diff --git a/Makefile.am b/Makefile.am
index 618be24..684c818 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -8,9 +8,10 @@ WARNINGS = -Wall -Wextra \
 
 libcriterion_la_CFLAGS = \
 	$(WARNINGS) \
-	-std=gnu11 \
+	-std=gnu99 \
 	-fplan9-extensions \
 	-I$(top_srcdir)/include/ \
+	-I$(top_srcdir)/dependencies/csptr/include/ \
 	$(COVERAGE_CFLAGS)
 
 libcriterion_la_LDFLAGS = $(COVERAGE_LDFLAGS)