diff --git a/freeimage.spec b/freeimage.spec
index 8b1e225..49a1359 100644
--- a/freeimage.spec
+++ b/freeimage.spec
@@ -5,7 +5,7 @@
 
 Name:    freeimage
 Version: 3.18.0
-Release: 5
+Release: 6
 Summary: FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF, BMP and others)
 License: GPLv2 or GPLv3 and FIPL
 URL:	 https://freeimage.sourceforge.io/
@@ -105,6 +105,9 @@ ldconfig -n %{buildroot}%{_libdir}
 
 
 %changelog
+* Tue Feb 09 2021 Jiachen Fan <fanjiachen3@huawei.com> -3.18.0-6
+- correct the substream.patch: correct the line
+
 * Wed Dec 16 2020 Senlin <xiasenlin1@huawei.com> -3.18.0-5
 - correct the substream.patch: add an empty line at end of file
 
diff --git a/substream.patch b/substream.patch
index 4f55d82..63f044a 100644
--- a/substream.patch
+++ b/substream.patch
@@ -1,43 +1,50 @@
---- a/Source/FreeImage/PluginRAW.cpp~	2020-05-08 08:27:31.000000000 -0500
-+++ a/Source/FreeImage/PluginRAW.cpp	2020-05-08 08:47:09.011816310 -0500
-@@ -63,17 +63,17 @@
- 	}
- 
-     int read(void *buffer, size_t size, size_t count) { 
- 		return _io->read_proc(buffer, (unsigned)size, (unsigned)count, _handle);
- 	}
- 
-     int seek(INT64 offset, int origin) { 
- 		return _io->seek_proc(_handle, (long)offset, origin);
- 	}
- 
-     INT64 tell() { 
-         return _io->tell_proc(_handle);
-     }
- 	
-@@ -83,13 +83,13 @@
- 
-     int get_char() { 
- 		int c = 0;
- 		if(!_io->read_proc(&c, 1, 1, _handle)) return -1;
- 		return c;
-    }
- 	
- 	char* gets(char *buffer, int length) { 
- 		memset(buffer, 0, length);
- 		for(int i = 0; i < length; i++) {
- 			if(!_io->read_proc(&buffer[i], 1, 1, _handle))
-@@ -104,7 +104,7 @@
- 		std::string buffer;
- 		char element = 0;
- 		bool bDone = false;			
- 		do {
- 			if(_io->read_proc(&element, 1, 1, _handle) == 1) {
- 				switch(element) {
-@@ -127,7 +127,7 @@
- 	}
- 
- 	int eof() { 
-         return (_io->tell_proc(_handle) >= _eof);
-     }
-
+--- a/Source/FreeImage/PluginRAW.cpp~	2020-05-08 08:27:31.000000000 -0500
++++ b/Source/FreeImage/PluginRAW.cpp	2020-05-08 08:47:09.011816310 -0500
+@@ -63,17 +63,14 @@
+ 	}
+ 
+     int read(void *buffer, size_t size, size_t count) { 
+-		if(substream) return substream->read(buffer, size, count);
+ 		return _io->read_proc(buffer, (unsigned)size, (unsigned)count, _handle);
+ 	}
+ 
+     int seek(INT64 offset, int origin) { 
+-        if(substream) return substream->seek(offset, origin);
+ 		return _io->seek_proc(_handle, (long)offset, origin);
+ 	}
+ 
+     INT64 tell() { 
+-		if(substream) return substream->tell();
+         return _io->tell_proc(_handle);
+     }
+ 	
+@@ -83,13 +80,11 @@
+ 
+     int get_char() { 
+ 		int c = 0;
+-		if(substream) return substream->get_char();
+ 		if(!_io->read_proc(&c, 1, 1, _handle)) return -1;
+ 		return c;
+    }
+ 	
+ 	char* gets(char *buffer, int length) { 
+-		if (substream) return substream->gets(buffer, length);
+ 		memset(buffer, 0, length);
+ 		for(int i = 0; i < length; i++) {
+ 			if(!_io->read_proc(&buffer[i], 1, 1, _handle))
+@@ -104,7 +99,6 @@
+ 		std::string buffer;
+ 		char element = 0;
+ 		bool bDone = false;
+-		if(substream) return substream->scanf_one(fmt,val);				
+ 		do {
+ 			if(_io->read_proc(&element, 1, 1, _handle) == 1) {
+ 				switch(element) {
+@@ -127,7 +121,6 @@
+ 	}
+ 
+ 	int eof() { 
+-		if(substream) return substream->eof();
+         return (_io->tell_proc(_handle) >= _eof);
+     }
+