diff --git a/Installer/InnoSetup/WinMerge.iss b/Installer/InnoSetup/WinMerge.iss
index 7d467f954b3..519f2c385ba 100755
--- a/Installer/InnoSetup/WinMerge.iss
+++ b/Installer/InnoSetup/WinMerge.iss
@@ -528,6 +528,7 @@ Source: ..\..\Externals\winimerge\GPL.txt; DestDir: {app}\WinIMerge; Components:
 Source: ..\..\Externals\winimerge\freeimage-license-gplv2.txt; DestDir: {app}\WinIMerge; Components: WinIMerge
 ;Source: ..\..\Externals\winimerge\Build\Release\WinIMerge.exe; DestDir: {app}\WinIMerge; Components: WinIMerge
 Source: ..\..\Externals\winimerge\Build\Release\WinIMergeLib.dll; DestDir: {app}\WinIMerge; Components: WinIMerge
+Source: {#VS140COMNTOOLS}\..\..\VC\redist\x86\Microsoft.VC120.OpenMP\vcomp120.dll; DestDir: {app}; Components: WinIMerge
 Source: {#VS140COMNTOOLS}\..\..\VC\redist\x86\Microsoft.VC140.OpenMP\vcomp140.dll; DestDir: {app}; Components: WinIMerge
 
 ;GnuWin32 Patch for Windows
diff --git a/Installer/InnoSetup/WinMergeX64.iss b/Installer/InnoSetup/WinMergeX64.iss
index a0c7c9a4eb6..a86267b9ce7 100644
--- a/Installer/InnoSetup/WinMergeX64.iss
+++ b/Installer/InnoSetup/WinMergeX64.iss
@@ -506,6 +506,7 @@ Source: ..\..\Externals\winimerge\GPL.txt; DestDir: {app}\WinIMerge; Components:
 Source: ..\..\Externals\winimerge\freeimage-license-gplv2.txt; DestDir: {app}\WinIMerge; Components: WinIMerge
 ;Source: ..\..\Externals\winimerge\Build\x64\Release\WinIMerge.exe; DestDir: {app}\WinIMerge; Components: WinIMerge
 Source: ..\..\Externals\winimerge\Build\x64\Release\WinIMergeLib.dll; DestDir: {app}\WinIMerge; Components: WinIMerge
+Source: {#VS120COMNTOOLS}\..\..\VC\redist\x64\Microsoft.VC120.OpenMP\vcomp120.dll; DestDir: {app}; Components: WinIMerge
 Source: {#VS140COMNTOOLS}\..\..\VC\redist\x64\Microsoft.VC140.OpenMP\vcomp140.dll; DestDir: {app}; Components: WinIMerge
 
 ;GnuWin32 Patch for Windows