diff --git a/jlex-1.2.6.static.patch b/jlex-1.2.6.static.patch
index c9bce8e..da54d46 100644
--- a/jlex-1.2.6.static.patch
+++ b/jlex-1.2.6.static.patch
@@ -1,6 +1,6 @@
---- Main.java.orig	2003-03-26 11:47:18.000000000 +0100
-+++ Main.java	2003-03-26 11:47:21.000000000 +0100
-@@ -1072,8 +1072,15 @@
+--- Main.java.orig	2000-09-06 16:09:47.000000000 +0200
++++ Main.java	2024-02-21 16:03:00.139049849 +0100
+@@ -1068,8 +1068,15 @@
  	// Added 6/24/98 Raimondas Lencevicius
  	// May be made more efficient by replacing String operations
  	// Assumes correctly formed input String. Performs no error checking
@@ -16,7 +16,7 @@
  	m_outstream.println("\t\tint colonIndex = -1;");
  	m_outstream.println("\t\tString lengthString;");
  	m_outstream.println("\t\tint sequenceLength = 0;");
-@@ -1216,13 +1223,23 @@
+@@ -1212,13 +1219,23 @@
  	int[] yy_cmap = new int[m_spec.m_ccls_map.length];
  	for (i = 0; i < m_spec.m_ccls_map.length; ++i)
  	    yy_cmap[i] = m_spec.m_col_map[m_spec.m_ccls_map[i]];
@@ -40,8 +40,8 @@
  	emit_table_as_string(new int[][] { m_spec.m_row_map });
  	m_outstream.println(")[0];");
  	m_outstream.println();
-@@ -1237,8 +1254,14 @@
- 	    CUtility.ASSERT(dtrans.m_dtrans.length==m_spec.m_dtrans_ncols);
+@@ -1233,8 +1250,14 @@
+ 	    CUtility.assert(dtrans.m_dtrans.length==m_spec.m_dtrans_ncols);
  	    yy_nxt[elem] = dtrans.m_dtrans;
  	}
 +	if (Main.staticFlag) {
@@ -55,7 +55,7 @@
  	emit_table_as_string(yy_nxt);
  	m_outstream.println(");");
  	m_outstream.println();
-@@ -3825,26 +3848,43 @@
+@@ -3821,18 +3844,35 @@
    /***************************************************************
      Function: main
      **************************************************************/
@@ -79,7 +79,6 @@
 -	  {
 -	    System.out.println("Usage: JLex.Main <filename>");
 -	    return;
--	  }
 +	// Parse options starting with '-'
 +	for (i = 0; i < arg.length && arg[i].charAt(0) == '-'; i++) {
 +	    if (arg[i].equals("-static")) {
@@ -93,10 +92,10 @@
 +	// Enough arguments left ?
 +	if (arg.length - i < 1) {
 +	    printUsage();
-+	}
+ 	  }
  
  	/* Note: For debuging, it may be helpful to remove the try/catch
- 	   block and permit the Exception to propagate to the top level. 
+@@ -3840,7 +3880,7 @@
  	   This gives more information. */
  	try 
  	  {	
diff --git a/jlex.changes b/jlex.changes
index 9207752..e5565ae 100644
--- a/jlex.changes
+++ b/jlex.changes
@@ -2,6 +2,9 @@
 Wed Feb 21 12:51:43 UTC 2024 - Fridrich Strba <fstrba@suse.com>
 
 - Use %patch -P N instead of deprecated %patchN.
+- Modified patch:
+  * jlex-1.2.6.static.patch
+    + rediff to changed Main.java
 
 -------------------------------------------------------------------
 Fri Mar 18 16:44:59 UTC 2022 - Fridrich Strba <fstrba@suse.com>
diff --git a/jlex.spec b/jlex.spec
index 1f4f350..e2704a2 100644
--- a/jlex.spec
+++ b/jlex.spec
@@ -45,6 +45,8 @@ JLex is a lexical analyzer generator for Java.
 %setup -q -c -T
 cp %{SOURCE0} .
 %patch -P 0
+# assert is keyword since 1.4
+sed -i "s/assert/ASSERT/g" Main.java
 cp %{SOURCE1} build.xml
 
 %build