diff --git a/packages/duckdb-wasm/bundle.mjs b/packages/duckdb-wasm/bundle.mjs
index 005371cb5..81b118166 100644
--- a/packages/duckdb-wasm/bundle.mjs
+++ b/packages/duckdb-wasm/bundle.mjs
@@ -109,7 +109,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         format: 'cjs',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_BROWSER,
         define: { 'process.release.name': '"browser"' },
@@ -124,7 +124,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         globalName: 'duckdb',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_BROWSER,
         define: { 'process.release.name': '"browser"' },
@@ -138,7 +138,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         format: 'cjs',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_BROWSER,
         define: {
@@ -155,7 +155,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         format: 'esm',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_BROWSER,
         define: {
@@ -173,7 +173,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         globalName: 'duckdb',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_WEBWORKER,
         define: { 'process.release.name': '"browser"' },
@@ -188,7 +188,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         globalName: 'duckdb',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_WEBWORKER,
         define: { 'process.release.name': '"browser"' },
@@ -203,7 +203,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         globalName: 'duckdb',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_WEBWORKER,
         define: { 'process.release.name': '"browser"' },
@@ -217,7 +217,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         format: 'iife',
         target: TARGET_BROWSER,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_WEBWORKER,
         define: { 'process.release.name': '"browser"' },
@@ -235,7 +235,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         globalName: 'duckdb',
         target: TARGET_NODE,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_NODE,
     });
@@ -248,7 +248,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         format: 'cjs',
         target: TARGET_NODE,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_NODE,
     });
@@ -261,7 +261,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         format: 'cjs',
         target: TARGET_NODE,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_NODE,
     });
@@ -274,7 +274,7 @@ fs.copyFile(path.resolve(src, 'bindings', 'duckdb-coi.wasm'), path.resolve(dist,
         format: 'cjs',
         target: TARGET_NODE,
         bundle: true,
-        minify: true,
+        minify: !is_debug,
         sourcemap: is_debug ? 'inline' : true,
         external: EXTERNALS_NODE,
     });