diff --git a/tests/formic/formic_acid3.end b/tests/formic/formic_acid3.end
new file mode 100644
index 0000000..e69de29
diff --git a/tests/formic/formic_acid3.mop b/tests/formic/formic_acid3.mop
new file mode 100644
index 0000000..cdae619
--- /dev/null
+++ b/tests/formic/formic_acid3.mop
@@ -0,0 +1,8 @@
+AM1
+Formic acid
+Example of normal geometry definition
+O          0.0000      0.0000      0.0000
+C          1.2000      0.0000      0.0000
+O          1.7952      1.1782      0.0000
+H          1.3156      2.0328      0.0000
+H          1.8726     -0.8830      0.0000