diff --git a/dist/windows/strawberry.nsi.in b/dist/windows/strawberry.nsi.in
index 59ebac001..2ebc81cdd 100644
--- a/dist/windows/strawberry.nsi.in
+++ b/dist/windows/strawberry.nsi.in
@@ -489,6 +489,12 @@ Section "Strawberry" Strawberry
   File "zlibd.dll"
 !endif
 
+  ; Used by libfftw3-3.dll because fftw is compiled with MinGW.
+!ifdef arch_x86
+  File "libgcc_s_sjlj-1.dll"
+  File "libwinpthread-1.dll"
+!endif
+
 !endif ; MSVC
 
   ; Common files
@@ -1038,6 +1044,11 @@ Section "Uninstall"
   Delete "$INSTDIR\zlibd.dll"
 !endif
 
+!ifdef arch_x86
+  Delete "$INSTDIR\libgcc_s_sjlj-1.dll"
+  Delete "$INSTDIR\libwinpthread-1.dll"
+!endif
+
 !endif ; MSVC
 
   ; Common files