diff --git a/cmake/QtWasmHelpers.cmake b/cmake/QtWasmHelpers.cmake
index 88161e767c3..6e2ff9bccc7 100644
--- a/cmake/QtWasmHelpers.cmake
+++ b/cmake/QtWasmHelpers.cmake
@@ -81,7 +81,7 @@ function (qt_internal_setup_wasm_target_properties wasmTarget)
         # Pass --source-map-base on the linker line. This informs the
         # browser where to find the source files when debugging.
         # -g4 to make source maps for debugging
-        target_link_options("${wasmTarget}" INTERFACE  "-g4" "--source-map-base" "${WASM_SOURCE_MAP_BASE}")
+        target_link_options("${wasmTarget}" INTERFACE  "-gsource-map" "--source-map-base" "${WASM_SOURCE_MAP_BASE}")
 
     endif()
 
diff --git a/mkspecs/features/wasm/wasm.prf b/mkspecs/features/wasm/wasm.prf
index 2629e962c86..8c1da8749ae 100644
--- a/mkspecs/features/wasm/wasm.prf
+++ b/mkspecs/features/wasm/wasm.prf
@@ -127,12 +127,7 @@ CONFIG(debug):!isEmpty(QT_WASM_SOURCE_MAP) {
 
     EMCC_VERSION = $$qtSystemEmccVersion()
 
-    greaterThan(EMCC_VERSION, 2.0.16) {
-        # emsdk 2.0.17 depreciates use of -g4
-        QMAKE_LFLAGS += -gsource-map
-    } else {
-        QMAKE_LFLAGS += -g4
-    }
+    QMAKE_LFLAGS += -gsource-map
     # Pass --source-map-base on the linker line. This informs the
     # browser where to find the source files when debugging.
     WASM_SOURCE_MAP_BASE = http://localhost:8000/