diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5b84f5bc8f8..777dfb823b7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,9 +9,18 @@ env:
   DOC_PATH: target/doc
 
 jobs:
+  typos:
+    name: Typos
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install typos
+        run: cargo install typos-cli
+      - name: Run typos
+        run: typos .
   tests:
     name: "LLVM ${{ matrix.llvm-version[0] }}: ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}
+    needs: typos
     strategy:
       matrix:
         llvm-version:
diff --git a/_typos.toml b/_typos.toml
new file mode 100644
index 00000000000..39787dae0b4
--- /dev/null
+++ b/_typos.toml
@@ -0,0 +1,9 @@
+[default]
+extend-ignore-identifiers-re = [
+    "OLT",
+    "toi",
+    "isplay",
+    "BVE",
+    "olt",
+    "TRE",
+]
\ No newline at end of file
diff --git a/src/builder.rs b/src/builder.rs
index da47b4afcd1..60301cfeadf 100644
--- a/src/builder.rs
+++ b/src/builder.rs
@@ -66,8 +66,6 @@ enum PositionState {
 pub enum BuilderError {
     #[error("Builder position is not set")]
     UnsetPosition,
-    #[error("GEP error: does not point to a struct or index is out of bounds")]
-    GEPError,
     #[error("Alignment error")]
     AlignmentError(&'static str),
     #[error("Aggregate extract index out of range")]
@@ -1104,13 +1102,13 @@ impl<'ctx> Builder<'ctx> {
         let pointee_ty = ptr_ty.get_element_type();
 
         if !pointee_ty.is_struct_type() {
-            return Err(BuilderError::GEPError);
+            return Err(BuilderError::GEPPointee);
         }
 
         let struct_ty = pointee_ty.into_struct_type();
 
         if index >= struct_ty.count_fields() {
-            return Err(BuilderError::GEPError);
+            return Err(BuilderError::GEPIndex);
         }
 
         let c_string = to_c_str(name);