diff --git a/.changeset/spicy-parents-lick.md b/.changeset/spicy-parents-lick.md
new file mode 100644
index 0000000000..692745ed12
--- /dev/null
+++ b/.changeset/spicy-parents-lick.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs': patch
+---
+
+Include query parameters when navigating to relative links in documents
diff --git a/plugins/techdocs/src/reader/components/TechDocsReaderPageContent/dom.tsx b/plugins/techdocs/src/reader/components/TechDocsReaderPageContent/dom.tsx
index 0e811af6e0..e886454594 100644
--- a/plugins/techdocs/src/reader/components/TechDocsReaderPageContent/dom.tsx
+++ b/plugins/techdocs/src/reader/components/TechDocsReaderPageContent/dom.tsx
@@ -175,13 +175,14 @@ export const useTechDocsReaderDom = (
             // detect if CTRL or META keys are pressed so that links can be opened in a new tab with `window.open`
             const modifierActive = event.ctrlKey || event.metaKey;
             const parsedUrl = new URL(url);
+            const fullPath = `${parsedUrl.pathname}${parsedUrl.search}${parsedUrl.hash}`;
 
             // hash exists when anchor is clicked on secondary sidebar
             if (parsedUrl.hash) {
               if (modifierActive) {
-                window.open(`${parsedUrl.pathname}${parsedUrl.hash}`, '_blank');
+                window.open(fullPath, '_blank');
               } else {
-                navigate(`${parsedUrl.pathname}${parsedUrl.hash}`);
+                navigate(fullPath);
                 // Scroll to hash if it's on the current page
                 transformedElement
                   ?.querySelector(`[id="${parsedUrl.hash.slice(1)}"]`)
@@ -189,9 +190,9 @@ export const useTechDocsReaderDom = (
               }
             } else {
               if (modifierActive) {
-                window.open(parsedUrl.pathname, '_blank');
+                window.open(fullPath, '_blank');
               } else {
-                navigate(parsedUrl.pathname);
+                navigate(fullPath);
               }
             }
           },