diff --git a/install.pri b/install.pri
index 49f770ce9..a9d5f423e 100644
--- a/install.pri
+++ b/install.pri
@@ -207,7 +207,12 @@ win32-msvc2015 {
 }
 
 win32-g++ {
-    VC_RUNTIME_LIBS *= libgcc_s_dw2-1
+    equals(WORD_SIZE,32) {
+        VC_RUNTIME_LIBS *= libgcc_s_dw2-1
+    }
+    equals(WORD_SIZE,64) {
+        VC_RUNTIME_LIBS *= libgcc_s_seh-1
+    }
     VC_RUNTIME_LIBS *= libwinpthread-1
 
     vc_runtime_target.path *= $${PREFIX}/bin
diff --git a/src/xbus/xbus.pro b/src/xbus/xbus.pro
index 8ec25cc67..522550efd 100644
--- a/src/xbus/xbus.pro
+++ b/src/xbus/xbus.pro
@@ -169,7 +169,12 @@ win32 {
 }
 
 win32-g++ {
-    dep_target.files *= $$[QT_INSTALL_BINS]/libgcc_s_dw2-1.dll
+    equals(WORD_SIZE,32) {
+        dep_target.files *= $$[QT_INSTALL_BINS]/libgcc_s_dw2-1.dll
+    }
+    equals(WORD_SIZE,64) {
+        dep_target.files *= $$[QT_INSTALL_BINS]/libgcc_s_seh-1.dll
+    }
     dep_target.files *= $$[QT_INSTALL_BINS]/libwinpthread-1.dll
 
     # libstdc++-6.dll needs a workaround since copy does not accept a filepath with '+' in it