diff --git a/openapi2kong/openapi2kong.go b/openapi2kong/openapi2kong.go
index 55bd1b2..69f46e3 100644
--- a/openapi2kong/openapi2kong.go
+++ b/openapi2kong/openapi2kong.go
@@ -1074,7 +1074,12 @@ func Convert(content []byte, opts O2kOptions) (map[string]interface{}, error) {
 					varName := match[1]
 					// match single segment; '/', '?', and '#' can mark the end of a segment
 					// see https://github.com/OAI/OpenAPI-Specification/issues/291#issuecomment-316593913
-					regexMatch := "(?<" + sanitizeRegexCapture(varName, opts.InsoCompat) + ">[^#?/]+)"
+					captureName := sanitizeRegexCapture(varName, opts.InsoCompat)
+					if len(captureName) >= 32 {
+						return nil, fmt.Errorf("path-parameter name exceeds 32 characters: '%s' (sanitized to '%s')",
+							varName, captureName)
+					}
+					regexMatch := "(?<" + captureName + ">[^#?/]+)"
 					placeHolder := "{" + varName + "}"
 					logbasics.Debug("replacing path parameter", "parameter", placeHolder, "regex", regexMatch)
 					convertedPath = strings.Replace(convertedPath, placeHolder, regexMatch, 1)
diff --git a/openapi2kong/openapi2kong_test.go b/openapi2kong/openapi2kong_test.go
index da30bb8..5292416 100644
--- a/openapi2kong/openapi2kong_test.go
+++ b/openapi2kong/openapi2kong_test.go
@@ -87,3 +87,34 @@ func Test_Openapi2kong_InsoCompat(t *testing.T) {
 		}
 	}
 }
+
+func Test_Openapi2kong_pathParamLength(t *testing.T) {
+	testDataString := `
+openapi: 3.0.3
+info:
+  title: Path parameter test
+  version: v1
+servers:
+  - url: "https://example.com"
+
+paths:
+  /demo/{something-very-long-that-is-way-beyond-the-32-limit}/:
+    get:
+      operationId: opsid
+      parameters:
+        - in: path
+          name: something-very-long-that-is-way-beyond-the-32-limit
+          required: true
+          schema:
+            type: string
+      responses:
+        "200":
+          description: OK
+`
+	_, err := Convert([]byte(testDataString), O2kOptions{})
+	if err == nil {
+		t.Error("Expected error, but got none")
+	} else {
+		assert.Contains(t, err.Error(), "path-parameter name exceeds 32 characters")
+	}
+}