diff --git a/src/front/glsl/error.rs b/src/front/glsl/error.rs
index 0e839b2b99..f1fcc3a72e 100644
--- a/src/front/glsl/error.rs
+++ b/src/front/glsl/error.rs
@@ -33,8 +33,8 @@ pub enum ErrorKind {
     #[error("Unknown layout qualifier: {1}")]
     UnknownLayoutQualifier(SourceMetadata, String),
     #[cfg(feature = "glsl-validate")]
-    #[error("Variable already declared: {0}")]
-    VariableAlreadyDeclared(String),
+    #[error("Variable already declared: {1}")]
+    VariableAlreadyDeclared(SourceMetadata, String),
     #[error("{1}")]
     SemanticError(SourceMetadata, Cow<'static, str>),
 }
@@ -48,7 +48,8 @@ impl ErrorKind {
             | ErrorKind::InvalidVersion(metadata, _)
             | ErrorKind::UnknownLayoutQualifier(metadata, _)
             | ErrorKind::SemanticError(metadata, _)
-            | ErrorKind::UnknownField(metadata, _) => Some(metadata),
+            | ErrorKind::UnknownField(metadata, _)
+            | ErrorKind::VariableAlreadyDeclared(metadata, _) => Some(metadata),
             ErrorKind::InvalidToken(ref token, _) => Some(token.meta),
             _ => None,
         }
diff --git a/src/front/glsl/variables.rs b/src/front/glsl/variables.rs
index 8a3bbee5dd..168ff3ea2f 100644
--- a/src/front/glsl/variables.rs
+++ b/src/front/glsl/variables.rs
@@ -389,7 +389,7 @@ impl Program<'_> {
     ) -> Result<Handle<Expression>, ErrorKind> {
         #[cfg(feature = "glsl-validate")]
         if ctx.lookup_local_var_current_scope(&name).is_some() {
-            return Err(ErrorKind::VariableAlreadyDeclared(name));
+            return Err(ErrorKind::VariableAlreadyDeclared(meta, name));
         }
 
         let mut mutable = true;