diff --git a/coverage-badge.svg b/coverage-badge.svg
index 82fd6fa..513b8cd 100644
--- a/coverage-badge.svg
+++ b/coverage-badge.svg
@@ -11,7 +11,7 @@
     <g fill="#fff" text-anchor="middle" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="11">
         <text x="33.5" y="15" fill="#010101" fill-opacity=".3">coverage</text>
         <text x="33.5" y="14">coverage</text>
-        <text x="86" y="15" fill="#010101" fill-opacity=".3">18.2%</text>
-        <text x="86" y="14">18.2%</text>
+        <text x="86" y="15" fill="#010101" fill-opacity=".3">18.3%</text>
+        <text x="86" y="14">18.3%</text>
     </g>
 </svg>
diff --git a/internal/shutils/decoder/decoder.go b/internal/shutils/decoder/decoder.go
index 906133d..629e2a7 100644
--- a/internal/shutils/decoder/decoder.go
+++ b/internal/shutils/decoder/decoder.go
@@ -169,21 +169,7 @@ type ScriptFunc func(ctx context.Context, opts ...interp.RunnerOption) error
 // GetFunc returns a function corresponding to a bash function
 // with the given name
 func (d *Decoder) GetFunc(name string) (ScriptFunc, bool) {
-	fn := d.getFunc(name)
-	if fn == nil {
-		return nil, false
-	}
-
-	return func(ctx context.Context, opts ...interp.RunnerOption) error {
-		sub := d.Runner.Subshell()
-		for _, opt := range opts {
-			err := opt(sub)
-			if err != nil {
-				return err
-			}
-		}
-		return sub.Run(ctx, fn)
-	}, true
+	return d.GetFuncP(name, nil)
 }
 
 type PrepareFunc func(context.Context, *interp.Runner) error