diff --git a/Docs/src/flowcontrol.but b/Docs/src/flowcontrol.but
index 195a852b..5e0ecaf8 100644
--- a/Docs/src/flowcontrol.but
+++ b/Docs/src/flowcontrol.but
@@ -300,3 +300,9 @@ Compares (case insensitively) str1 to str2. If str1 and str2 are equal, Gotos ju
 \c   DetailPrint '$$0 == "a string"'
 \c   Goto +2
 \c   DetailPrint '$$0 != "a string"'
+
+\S2{strcmps} StrCmpS
+
+\c str1 str2 jump_if_equal [jump_if_not_equal]
+
+Same as \R{strcmp}{StrCmp}, but case sensitive.
diff --git a/Source/exehead/exec.c b/Source/exehead/exec.c
index 7db47bcc..8621020b 100644
--- a/Source/exehead/exec.c
+++ b/Source/exehead/exec.c
@@ -581,10 +581,18 @@ static int NSISCALL ExecuteEntry(entry *entry_)
         }
       }
     break;
-    case EW_STRCMP: {
+    case EW_STRCMP:
+    {
       char *buf2=GetStringFromParm(0x20);
       char *buf3=GetStringFromParm(0x31);
-      if (!lstrcmpi(buf2,buf3)) return parm2;
+      if (!parm4) {
+        // case insensitive
+        if (!lstrcmpi(buf2,buf3)) return parm2;
+      }
+      else {
+        // case sensitive
+        if (!lstrcmp(buf2,buf3)) return parm2;
+      }
     }
     return parm3;
 #endif//NSIS_SUPPORT_STROPTS
diff --git a/Source/exehead/fileform.h b/Source/exehead/fileform.h
index 3e741ea1..ae94879a 100644
--- a/Source/exehead/fileform.h
+++ b/Source/exehead/fileform.h
@@ -73,7 +73,7 @@ enum
 #ifdef NSIS_SUPPORT_STROPTS
   EW_STRLEN,            // StrLen: 2 [output, input]
   EW_ASSIGNVAR,         // Assign: 4 [variable (0-9) to assign, string to assign, maxlen, startpos]
-  EW_STRCMP,            // StrCmp: 4 [str1, str2, jump_if_equal, jump_if_not_equal] (case-insensitive)
+  EW_STRCMP,            // StrCmp: 5 [str1, str2, jump_if_equal, jump_if_not_equal, case-sensitive?]
 #endif
 #ifdef NSIS_SUPPORT_ENVIRONMENT
   EW_READENVSTR,        // ReadEnvStr/ExpandEnvStrings: 3 [output, string_with_env_variables, IsRead]
diff --git a/Source/script.cpp b/Source/script.cpp
index 86be6482..356c5c4a 100644
--- a/Source/script.cpp
+++ b/Source/script.cpp
@@ -4476,12 +4476,14 @@ int CEXEBuild::doCommand(int which_token, LineParser &line)
       SCRIPT_MSG("GetCurrentAddress: %s",line.gettoken_str(1));
     return add_entry(&ent);
     case TOK_STRCMP:
+    case TOK_STRCMPS:
       ent.which=EW_STRCMP;
       ent.offsets[0]=add_string(line.gettoken_str(1));
       ent.offsets[1]=add_string(line.gettoken_str(2));
+      ent.offsets[4]=which_token == TOK_STRCMPS;
       if (process_jump(line,3,&ent.offsets[2]) ||
           process_jump(line,4,&ent.offsets[3])) PRINTHELP()
-      SCRIPT_MSG("StrCmp \"%s\" \"%s\" equal=%s, nonequal=%s\n",line.gettoken_str(1),line.gettoken_str(2), line.gettoken_str(3),line.gettoken_str(4));
+      SCRIPT_MSG("%s \"%s\" \"%s\" equal=%s, nonequal=%s\n",line.gettoken_str(0),line.gettoken_str(1),line.gettoken_str(2), line.gettoken_str(3),line.gettoken_str(4));
     return add_entry(&ent);
     case TOK_GETDLLVERSIONLOCAL:
       {
@@ -4695,6 +4697,7 @@ int CEXEBuild::doCommand(int which_token, LineParser &line)
     case TOK_STRLEN:
     case TOK_STRCPY:
     case TOK_STRCMP:
+    case TOK_STRCMPS:
       ERROR_MSG("Error: %s specified, NSIS_SUPPORT_STROPTS not defined.\n",  line.gettoken_str(0));
     return PS_ERROR;
 #endif//!NSIS_SUPPORT_STROPTS
diff --git a/Source/tokens.cpp b/Source/tokens.cpp
index b2a2cef7..00ce420b 100644
--- a/Source/tokens.cpp
+++ b/Source/tokens.cpp
@@ -196,6 +196,7 @@ static tokenType tokenlist[TOK__LAST] =
 {TOK_SILENTUNINST,"SilentUnInstall",1,0,"(normal|silent)",TP_GLOBAL},
 {TOK_SLEEP,"Sleep",1,0,"sleep_time_in_ms",TP_CODE},
 {TOK_STRCMP,"StrCmp",3,1,"str1 str2 label_to_goto_if_equal [label_to_goto_if_not]",TP_CODE},
+{TOK_STRCMPS,"StrCmpS",3,1,"str1 str2 label_to_goto_if_equal [label_to_goto_if_not]",TP_CODE},
 {TOK_STRCPY,"StrCpy",2,2,"$(user_var: output) str [maxlen] [startoffset]",TP_CODE},
 {TOK_STRLEN,"StrLen",2,0,"$(user_var: length output) str",TP_CODE},
 {TOK_SUBCAPTION,"SubCaption",2,0,"page_number(0-4) new_subcaption",TP_GLOBAL},
diff --git a/Source/tokens.h b/Source/tokens.h
index 0919babd..26a8351e 100644
--- a/Source/tokens.h
+++ b/Source/tokens.h
@@ -176,6 +176,7 @@ enum
   TOK_IFABORT,
   TOK_STRCPY,
   TOK_STRCMP,
+  TOK_STRCMPS,
   TOK_GETTEMPFILENAME,
   TOK_GETFUNCTIONADDR,
   TOK_GETLABELADDR,