diff --git a/binaries/aarch64/nfqws b/binaries/aarch64/nfqws
index 5fc34f9..daa9e29 100755
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diff --git a/binaries/aarch64/tpws b/binaries/aarch64/tpws
index 940f18f..7251608 100755
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diff --git a/binaries/armhf/nfqws b/binaries/armhf/nfqws
index 48f6fd2..a18205b 100755
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diff --git a/binaries/armhf/tpws b/binaries/armhf/tpws
index 2eec4c2..c1d419b 100755
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diff --git a/binaries/mips32r1-lsb/nfqws b/binaries/mips32r1-lsb/nfqws
index cc517de..ac2ba62 100755
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diff --git a/binaries/mips32r1-lsb/tpws b/binaries/mips32r1-lsb/tpws
index 1abafe5..d8cf1a9 100755
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diff --git a/binaries/mips32r1-msb/nfqws b/binaries/mips32r1-msb/nfqws
index d723c3a..b33f8b2 100755
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diff --git a/binaries/mips32r1-msb/tpws b/binaries/mips32r1-msb/tpws
index 5c2dc94..6099d93 100755
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diff --git a/binaries/mips64r2-msb/nfqws b/binaries/mips64r2-msb/nfqws
index 8f0d6aa..72f3f64 100755
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diff --git a/binaries/mips64r2-msb/tpws b/binaries/mips64r2-msb/tpws
index 0a141b0..6a23a23 100755
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diff --git a/binaries/ppc/nfqws b/binaries/ppc/nfqws
index 32c2a7e..837bd36 100755
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diff --git a/binaries/ppc/tpws b/binaries/ppc/tpws
index 178c311..3dca18b 100755
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diff --git a/binaries/x86/nfqws b/binaries/x86/nfqws
index 037e763..a3e2ea8 100755
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diff --git a/binaries/x86/tpws b/binaries/x86/tpws
index ff0ad79..d6e6d5d 100755
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diff --git a/binaries/x86_64/nfqws b/binaries/x86_64/nfqws
index 5212c80..a3ea1da 100755
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diff --git a/binaries/x86_64/tpws b/binaries/x86_64/tpws
index 5ada2b0..a845204 100755
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diff --git a/nfq/nfqws.c b/nfq/nfqws.c
index 4b6436b..19737db 100644
--- a/nfq/nfqws.c
+++ b/nfq/nfqws.c
@@ -387,23 +387,33 @@ bool setpcap(cap_value_t *caps,int ncaps)
 	cap_free(capabilities);
 	return true;
 }
+int getmaxcap()
+{
+	int maxcap = CAP_LAST_CAP;
+	FILE *F = fopen("/proc/sys/kernel/cap_last_cap","r");
+	if (F)
+	{
+		fscanf(F,"%d",&maxcap);
+		fclose(F);
+	}
+	return maxcap;
+	
+}
 bool dropcaps()
 {
 	// must have CAP_SETPCAP at the end. its required to clear bounding set
 	cap_value_t cap_values[] = {CAP_NET_ADMIN,CAP_SETPCAP};
 	int capct=sizeof(cap_values)/sizeof(*cap_values);
+	int maxcap = getmaxcap();
 
 	if (setpcap(cap_values, capct))
 	{
-		for(int cap=0;cap<=63;cap++)
+		for(int cap=0;cap<=maxcap;cap++)
 		{
 			if (cap_drop_bound(cap))
 			{
-				if (errno!=EINVAL)
-				{
-					fprintf(stderr,"could not drop cap %d\n",cap);
-					perror("cap_drop_bound");
-				}
+				fprintf(stderr,"could not drop cap %d\n",cap);
+				perror("cap_drop_bound");
 			}
 		}
 	}
diff --git a/tpws/tpws.c b/tpws/tpws.c
index 8d02596..ec462a5 100644
--- a/tpws/tpws.c
+++ b/tpws/tpws.c
@@ -816,23 +816,33 @@ bool setpcap(cap_value_t *caps,int ncaps)
 	cap_free(capabilities);
 	return true;
 }
+int getmaxcap()
+{
+	int maxcap = CAP_LAST_CAP;
+	FILE *F = fopen("/proc/sys/kernel/cap_last_cap","r");
+	if (F)
+	{
+		fscanf(F,"%d",&maxcap);
+		fclose(F);
+	}
+	return maxcap;
+	
+}
 bool dropcaps()
 {
 	// must have CAP_SETPCAP at the end. its required to clear bounding set
 	cap_value_t cap_values[] = {CAP_SETPCAP};
 	int capct=sizeof(cap_values)/sizeof(*cap_values);
+	int maxcap = getmaxcap();
 
 	if (setpcap(cap_values, capct))
 	{
-		for(int cap=0;cap<=63;cap++)
+		for(int cap=0;cap<=maxcap;cap++)
 		{
 			if (cap_drop_bound(cap))
 			{
-				if (errno!=EINVAL)
-				{
-					fprintf(stderr,"could not drop cap %d\n",cap);
-					perror("cap_drop_bound");
-				}
+				fprintf(stderr,"could not drop cap %d\n",cap);
+				perror("cap_drop_bound");
 			}
 		}
 	}