diff --git a/input/input.go b/input/input.go
index a0b4368..5f5daab 100644
--- a/input/input.go
+++ b/input/input.go
@@ -152,6 +152,8 @@ func (inp *Input) ValidatePatterns() error {
 		return err
 	}
 
+	scenarioFnameArray := []string{}
+
 	for _, scenario := range inp.Scenarios {
 		// Ambig and Unambig
 		if scenario.Parameters.Restraints.Ambig != "" || scenario.Parameters.Restraints.Unambig != "" {
@@ -195,6 +197,22 @@ func (inp *Input) ValidatePatterns() error {
 				err := errors.New("duplicated patterns in `" + m + "` modules' `fname` parameters")
 				return err
 			}
+
+			// Check if there are patterns that match each other
+			scenarioFnameArray = append(scenarioFnameArray, fnameArr...)
+		}
+		// Check if there are patterns that match each other
+		for i := 0; i < len(scenarioFnameArray); i++ {
+			for j := i + 1; j < len(scenarioFnameArray); j++ {
+
+				patternA := regexp.MustCompile(scenarioFnameArray[i])
+				patternB := regexp.MustCompile(scenarioFnameArray[j])
+
+				if scenarioFnameArray[i] != scenarioFnameArray[j] && (patternA.MatchString(scenarioFnameArray[j]) || patternB.MatchString(scenarioFnameArray[i])) {
+					err := errors.New("patterns `" + scenarioFnameArray[i] + "` and `" + scenarioFnameArray[j] + "` match each other, please rename them")
+					return err
+				}
+			}
 		}
 
 	}
diff --git a/input/input_test.go b/input/input_test.go
index afe6c37..d3bc49f 100644
--- a/input/input_test.go
+++ b/input/input_test.go
@@ -285,6 +285,39 @@ func TestInput_ValidatePatterns(t *testing.T) {
 			},
 			wantErr: true,
 		},
+		{
+			name: "invalid-fnames-match-each-other",
+			fields: fields{
+				General: GeneralStruct{
+					ReceptorSuffix: "_r_u",
+				},
+				Scenarios: []Scenario{
+					{
+						Name: "",
+						Parameters: ParametersStruct{
+							Modules: ModuleParams{
+								Order: []string{"rigidbody"},
+								Rigidbody: map[string]any{
+									"something_fname": "_ti",
+								},
+							},
+						},
+					},
+					{
+						Name: "",
+						Parameters: ParametersStruct{
+							Modules: ModuleParams{
+								Order: []string{"rigidbody"},
+								Rigidbody: map[string]any{
+									"something_fname": "_ti_something",
+								},
+							},
+						},
+					},
+				},
+			},
+			wantErr: true,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
diff --git a/main.go b/main.go
index 6c7d913..a3aef64 100644
--- a/main.go
+++ b/main.go
@@ -14,7 +14,7 @@ import (
 	"github.com/golang/glog"
 )
 
-const version = "v1.5.0"
+const version = "v1.5.1"
 
 func init() {
 	var versionPrint bool