diff --git a/pkg.c b/pkg.c
index 58eed08..86311ba 100644
--- a/pkg.c
+++ b/pkg.c
@@ -248,6 +248,8 @@ pkg_new_from_file(const char *filename, FILE *f, unsigned int flags)
 				pkg->version = pkg_tuple_parse(&pkg->vars, value);
 			else if (!strcasecmp(key, "CFLAGS"))
 				pkg_fragment_parse(&pkg->cflags, &pkg->vars, value);
+			else if (!strcasecmp(key, "CFLAGS.private"))
+				pkg_fragment_parse(&pkg->cflags_private, &pkg->vars, value);
 			else if (!strcasecmp(key, "LIBS"))
 				pkg_fragment_parse(&pkg->libs, &pkg->vars, value);
 			else if (!strcasecmp(key, "LIBS.private"))
@@ -295,6 +297,7 @@ pkg_free(pkg_t *pkg)
 	pkg_dependency_free(&pkg->conflicts);
 
 	pkg_fragment_free(&pkg->cflags);
+	pkg_fragment_free(&pkg->cflags_private);
 	pkg_fragment_free(&pkg->libs);
 	pkg_fragment_free(&pkg->libs_private);
 
@@ -1000,6 +1003,21 @@ pkg_cflags_collect(pkg_t *pkg, void *data, unsigned int flags)
 	}
 }
 
+static void
+pkg_cflags_private_collect(pkg_t *pkg, void *data, unsigned int flags)
+{
+	pkg_list_t *list = data;
+	pkg_node_t *node;
+	(void) flags;
+
+	PKG_FOREACH_LIST_ENTRY(pkg->cflags_private.head, node)
+	{
+		pkg_fragment_t *frag = node->data;
+
+		pkg_fragment_copy(list, frag);
+	}
+}
+
 int
 pkg_cflags(pkg_t *root, pkg_list_t *list, int maxdepth, unsigned int flags)
 {
@@ -1009,6 +1027,13 @@ pkg_cflags(pkg_t *root, pkg_list_t *list, int maxdepth, unsigned int flags)
 	if (eflag != PKG_ERRF_OK)
 		pkg_fragment_free(list);
 
+	if (flags & PKGF_MERGE_PRIVATE_FRAGMENTS)
+	{
+		eflag = pkg_traverse(root, pkg_cflags_private_collect, list, maxdepth, flags);
+		if (eflag != PKG_ERRF_OK)
+			pkg_fragment_free(list);
+	}
+
 	return eflag;
 }
 
diff --git a/pkg.h b/pkg.h
index 4e2c31c..f398bda 100644
--- a/pkg.h
+++ b/pkg.h
@@ -95,6 +95,7 @@ struct pkg_ {
 	pkg_list_t libs;
 	pkg_list_t libs_private;
 	pkg_list_t cflags;
+	pkg_list_t cflags_private;
 
 	pkg_list_t requires;
 	pkg_list_t requires_private;
diff --git a/tests/lib1/foo.pc b/tests/lib1/foo.pc
index 5974fbe..a8d448f 100644
--- a/tests/lib1/foo.pc
+++ b/tests/lib1/foo.pc
@@ -8,3 +8,4 @@ Description: A testing pkg-config file
 Version: 1.2.3
 Libs: -L${libdir} -lfoo
 Cflags: -fPIC -I${includedir}/foo
+Cflags.private: -DFOO_STATIC
diff --git a/tests/run.sh.in b/tests/run.sh.in
index 5cac694..b0cf04f 100644
--- a/tests/run.sh.in
+++ b/tests/run.sh.in
@@ -114,6 +114,8 @@ run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --static --libs baz" \
 	'-lfoo' '-lbaz' '-lzee'
 run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --static --libs argv-parse-2" \
 	'-pthread '
+run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --static --cflags baz" \
+	'-fPIC' '-I/usr/include/foo' '-DFOO_STATIC'
 
 # 4) tests for parser bugs
 run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --libs dos-lineendings" \