diff --git a/Makefile.am b/Makefile.am
index ae7cf2f..05a1feb 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -72,6 +72,9 @@ EXTRA_DIST =	pkg.m4 \
 		tests/lib1/fragment-collision-intermediary.pc \
 		tests/lib1/fragment-collision-1.pc \
 		tests/lib1/fragment-collision-2.pc \
+		tests/lib1/fragment-escaping-1.pc \
+		tests/lib1/fragment-escaping-2.pc \
+		tests/lib1/fragment-escaping-3.pc \
 		tests/lib1/fragment-quoting.pc \
 		tests/lib1/fragment-quoting-2.pc \
 		tests/lib1/fragment-quoting-3.pc \
diff --git a/tests/lib1/fragment-escaping-1.pc b/tests/lib1/fragment-escaping-1.pc
new file mode 100644
index 0000000..7d43b0c
--- /dev/null
+++ b/tests/lib1/fragment-escaping-1.pc
@@ -0,0 +1,4 @@
+Name: fragment-escaping-1
+Version: 0
+Description: fragment escaping test
+Cflags: "-IC:\\D E"
diff --git a/tests/lib1/fragment-escaping-2.pc b/tests/lib1/fragment-escaping-2.pc
new file mode 100644
index 0000000..12e03b3
--- /dev/null
+++ b/tests/lib1/fragment-escaping-2.pc
@@ -0,0 +1,4 @@
+Name: fragment-escaping-2
+Version: 0
+Description: fragment escaping test
+Cflags: '-IC:\D E'
diff --git a/tests/lib1/fragment-escaping-3.pc b/tests/lib1/fragment-escaping-3.pc
new file mode 100644
index 0000000..0f002dd
--- /dev/null
+++ b/tests/lib1/fragment-escaping-3.pc
@@ -0,0 +1,4 @@
+Name: fragment-escaping-3
+Version: 0
+Description: fragment escaping test
+Cflags: -IC:\\D\ E
diff --git a/tests/parser.sh b/tests/parser.sh
index 8b46008..5415641 100755
--- a/tests/parser.sh
+++ b/tests/parser.sh
@@ -20,6 +20,9 @@ tests_init \
 	flag_order_4 \
 	quoted \
 	variable_whitespace \
+	fragment_escaping_1 \
+	fragment_escaping_2 \
+	fragment_escaping_3 \
 	fragment_quoting \
 	fragment_quoting_2 \
 	fragment_quoting_3 \
@@ -207,6 +210,27 @@ fragment_quoting_7_body()
 		pkgconf --cflags fragment-quoting-7
 }
 
+fragment_escaping_1_body()
+{
+	atf_check \
+		-o inline:"'-IC:\D E' \n" \
+		pkgconf --with-path="${selfdir}/lib1" --cflags fragment-escaping-1
+}
+
+fragment_escaping_2_body()
+{
+	atf_check \
+		-o inline:"'-IC:\D E' \n" \
+		pkgconf --with-path="${selfdir}/lib1" --cflags fragment-escaping-2
+}
+
+fragment_escaping_3_body()
+{
+	atf_check \
+		-o inline:"'-IC:\D E' \n" \
+		pkgconf --with-path="${selfdir}/lib1" --cflags fragment-escaping-3
+}
+
 fragment_quoting_7a_body()
 {
 	set -x